🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 95 (from laksa184)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa095.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.sleepfoundation.org/melatonin/melatonin-overdose\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.sleepfoundation.org/melatonin/melatonin-overdose\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose","crawl_time":1775988165,"first_indexed_time":1620958477,"http_code":200,"src_unparsed":"org,sleepfoundation!www,\/melatonin\/melatonin-overdose s443","src_root_hash":"1916647574837971495","history_drop_reason":null,"meta_title":"Can You Overdose on Melatonin?","meta_descriptions":["Melatonin overdoses are rare, especially in adults, but melatonin can be risky for kids. Learn more about the safety and doses of melatonin supplements."],"attrs_boilerpipe_text":"Skip to content\nKey Takeaways\nThere’s no standard dosage of melatonin, but most adults should take between 1 to 5 milligrams and not exceed 10 milligrams a day.\nYou should talk to a doctor before giving melatonin to children and not exceed doses of 3 milligrams for kids 5 and up. Kids under 5 should not take melatonin.\nIn most cases, you can treat melatonin overdoses with time and rest. Very few require hospitalization.\nLife-threatenting overdoses are rare, but overdoses can cause noticeable side effects, including difficulty breathing, seizures, or a loss of consciousness.\nMelatonin is one of the most popular\nsleep aids\n. In fact, in a recent Sleep Foundation survey, it topped the list of sleep aids, with 58% of respondents reporting they had previously used melatonin.\nAnd though it’s been found generally safe with few serious side effects\n, there’s still a risk of melatonin overdose if you take too much. In recent years, poison centers have received five times the number of calls about\nmelatonin overdose\nas they did 20 years ago. Emergency rooms have seen four times as many children and infants coming in after unintentional melatonin ingestion. \nIt’s important to be aware of the safety risks posed by taking too much melatonin. Below, we take a closer look at\nmelatonin dosing\n, potential symptoms of a melatonin overdose, and when to contact a doctor.\nRecommended melatonin dosage varies depending on a person’s age. Experts generally recommend adults take between 1 and 5 milligrams of melatonin to\npromote better sleep\n.\nMost adults shouldn’t need to take more than 5 milligrams of melatonin a day, and researchers have found that more than 10 milligrams of melatonin a day is too much\n.\nIt’s important to talk to your doctor before beginning\nmelatonin supplementation\n. Start with a low dose of melatonin to see how your body reacts, then gradually increase the dosage if needed. Small doses, such as 1 milligram or less, may be just as effective as higher doses. \nStarting with a low dose is especially important, because some melatonin supplements contain a\nhigher dose\nthan what’s listed on the label. \nIn the U.S., dietary supplements including melatonin aren’t tested by the Food and Drug Administration (FDA) for safety or accuracy prior to being sold, so the listed amount may be slightly or significantly different from what’s actually present in the supplement. Some supplements may also include more than just melatonin. \nIt’s also important to note that different formulations of melatonin, such as pill, powder, gummy, or liquid, may be\nabsorbed differently\nby the body. Our survey results indicate that melatonin users are at least three times more likely to use capsules, tablets, or gummies than they are any other type of formulation.\nThere also isn’t any information on how melatonin affects the body long-term. Experts recommend melatonin use for up to 3 months at a time.\n“Most people end up taking more melatonin than they actually need because of mislabeling. Many products contain higher doses than what’s actually listed.”\nIt’s unlikely that you’ll have a life-threatening reaction to a melatonin overdose. Generally,\nmelatonin isn’t bad for you\n. Melatonin is a hormone that your body naturally produces, so if you take too much your body just has an excess supply that will take longer than normal for it to process. \nResearchers haven’t found a lethal dose of melatonin\n. However, if you take too much, you may experience unpleasant—though non-serious—side effects. \nSymptoms of a Melatonin Overdose\nA life-threatening melatonin overdose is rare,\nespecially in adults.\nBut melatonin supplements with higher doses can cause adverse reactions and\nside effects\n, including:\nNightmares \nHeadaches \nIrritability \nStomach pain\nNausea \nDaytime tiredness  \nDizziness \nShort-term depression symptoms\nIn our survey, the most commonly reported symptoms included daytime drowsiness (24%), vivid dreams or nightmares (17%), headache (15%), and difficulty waking up (15%). Half said they’d never experienced any of the listed side effects. \nIt’s important to note, though, that these are known side effects and not necessarily indications of an overdose. Drug overdose symptoms that require immediate emergency medical attention include difficulty breathing, seizures, or a loss of consciousness.\nWhat to Do if You’re Experiencing Melatonin Overdose Symptoms\nIf you suspect you or someone else is experiencing a melatonin overdose, contact a poison control center. You can talk to a poison expert at\nPoisonHelp.org\nor by calling (800) 222-1222 in the U.S. \nIf you or someone else is experiencing severe symptoms, such as difficulty breathing, seizures, or a loss of consciousness, immediately call 9-1-1 or go to the emergency room. Ingesting melatonin may be particularly dangerous if you’ve consumed other medications or alcohol.\nExperts don’t recommend melatonin for children under 5, and they caution against doses above 3 milligrams for kids 5 and up. Even though\nmelatonin for kids\nis available without a prescription in the U.S., you shouldn’t give melatonin to a child without discussing it with their doctor first.\n“Some melatonin supplements look and taste similar to candy. This makes it important for parents to store all supplements and medications in child-safe bottles and outside the reach of children.”\nDustin Cotliar, MD, MPH\nPhysician\nChildren can experience side effects of melatonin overdose, but serious symptoms are rare and experts haven’t found a lethal melatonin dose for adults or children. Kids produce more melatonin than adults do naturally, so it’s important to keep dosage low. If children ingest more melatonin than their body can process, they may experience the following side effects.\nNightmares \nHeadaches \nIrritability \nStomach pain\nNausea \nDaytime tiredness  \nDizziness \nBedwetting\nMelatonin supplements are sometimes used to treat children who have\ninsomnia\n, other sleep disorders, or neurodevelopmental disorders, like autism, attention-deficit hyperactivity disorder (ADHD),\nor epilepsy.\nLower doses are thought to be safer and more effective than higher doses. \nThere’s no specific antidote for a melatonin overdose, and treatment typically focuses on managing symptoms. In most cases, mild melatonin overdoses can be treated at home by stopping use and allowing the supplement to naturally clear from the body.\nDon’t attempt to induce vomiting if you suspect a melatonin overdose. Instead, wait in a safe place for symptoms to pass. Common symptoms, such as drowsiness, headache, nausea, or dizziness, often resolve within a few hours.\nIf symptoms are more severe or prolonged, medical attention may be necessary. A healthcare provider may recommend supportive care, such as hydration, rest, or monitoring heart rate and blood pressure if irregularities are present. \nIn rare cases, especially when melatonin is taken in very high doses or combined with other medications, evaluation at a hospital or poison control center may be needed to ensure safety. If you experience difficulty breathing, loss of consciousness, or seizures, call 9-1-1 or go to the emergency room. You can also talk to an expert at\nPoisonHelp.org\n.\nSay Goodbye to Insomnia\nSign up to receive emails about how to improve your sleep,\u2028as well as our comprehensive Better Sleep Guidebook.\nAlthough melatonin has largely been found to be safe, talk to your doctor before beginning to take it or any dietary supplement. People often assume dietary supplements are safe, but they aren’t tested by the FDA for quality or accuracy, like prescription drugs are. Survey responses show that nearly 34% of people don’t seek out third-party researchers before buying a sleep aid.\nSupplements may also cause side effects or interact with prescription drugs. Melatonin effects on pregnant and post-partum people haven’t been significantly studied. Speak with a doctor if you’re pregnant or nursing. \nIf you’re taking melatonin and experience serious side effects or are concerned about overdose, call poison control or seek emergency medical attention immediately.\nFrequently Asked Questions\nHow long do melatonin side effects last?\nMelatonin side effects—such as grogginess, dizziness, headache, or nausea—usually resolve within a few hours as the supplement leaves your system. The exact duration can depend on the dose taken, your metabolism, and whether melatonin was combined with other substances like alcohol or sedating medications. In most cases, side effects are mild and temporary.\nIf symptoms persist longer than a few hours or are severe, it’s best to contact a healthcare professional.\nWhat are the long-term effects of taking melatonin?\nIn the short-term, you can\ntake melatonin every night\n, but long-term use hasn’t been widely studied. Most studies have only followed people using melatonin for about a month. Although longer-term studies haven’t found serious adverse events from using melatonin, experts say there isn’t enough research available to conclude that\nlong-term use\nof melatonin is safe.\nCan you build a tolerance to melatonin?\nMelatonin does not typically lead to physical dependence or tolerance in the way that some sleep medications do. However, some people may feel that melatonin becomes less effective over time, especially if taken in high doses or used nightly without addressing the root cause of sleep issues. This reduced effectiveness may be due to changes in your body’s natural melatonin production or sleep patterns rather than true tolerance.\nIf melatonin seems to stop working, it’s a good idea to take a break or consult a healthcare provider to explore other sleep strategies.\nWhat shouldn’t you take with melatonin?\nYou should avoid taking melatonin with alcohol, caffeine, and certain prescription medications. Alcohol and caffeine can affect your sleep-wake cycle and impact natural melatonin production. Birth control may increase natural melatonin production, too, so taking a melatonin supplement alongside birth control could result in more melatonin than your body can process\n.\nCertain anxiety and depression medications can have interactions with melatonin, including some SSRIs and sedatives. Melatonin can boost your immune system, so if you’re taking immunosuppressants, you may want to avoid melatonin. Melatonin can also interfere with prescription drugs that are used to treat sleep disorders.\nConsult your physician before taking melatonin, especially if you take other prescription medications.\nStill have questions? Ask our community!\nJoin our\nSleep Care Community\n— a trusted hub of sleep health professionals, product specialists, and people just like you. Whether you need expert sleep advice for your insomnia or you’re searching for the perfect mattress, we’ve got you covered. Get personalized guidance from the experts who know sleep best.\nWritten By\nJay Vera Summer,\nContributing Writer\nJay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy.\nMedically Reviewed by\nDustin Cotliar, MD, MPH,\nPhysician\nDustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine.\nLearn more about our Editorial Team\nReferences\n11 Sources\nBesag, F., Vasey, M. J., Lao, K., & Wong, I. (2019). Adverse events associated with melatonin for the treatment of primary or secondary sleep disorders: A systematic review. CNS Drugs, 33(12), 1167–1186.\nhttps:\/\/pubmed.ncbi.nlm.nih.gov\/31722088\/\nFreeman, D., Lind, J., Weidle, D., et al. Centers for Disease Control and Prevention. (2024, March 7). Emergency Department Visits for Unsupervised Pediatric Melatonin Ingestion – United States, 2019-2022. Morbidity and Mortality Weekly Report. Centers for Disease Control and Prevention.\nhttps:\/\/www.cdc.gov\/mmwr\/volumes\/73\/wr\/pdfs\/mm7309a5-H.pdf\nNeubauer, D. (2024, March). Pharmacotherapy for insomnia in adults. In R. Benca, J. Elmore, & A. Eichler (Ed.). UpToDate.\nhttps:\/\/www.uptodate.com\/contents\/pharmacotherapy-for-insomnia-in-adults\nShenoy P, Etcheverry A, Ia J, Witmans M, Tablizo MA. Melatonin Use in Pediatrics: A Clinical Review on Indications, Multisystem Effects, and Toxicity. Children. 2024; 11(3):323.\nhttps:\/\/www.mdpi.com\/2227-9067\/11\/3\/323\nCohen, P. A., Avula, B., Wang, Y. H., Katragunta, K., & Khan, I. (2023). Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US. JAMA, 329(16), 1401–1402.\nhttps:\/\/pubmed.ncbi.nlm.nih.gov\/37097362\/\nSavage, R., Zafar, N., Yohannan, S., & Miller, J. (2022, August 8). Melatonin. StatPearls.\nhttps:\/\/www.ncbi.nlm.nih.gov\/books\/NBK534823\/\nSavage, R., Zafar, N., Yohannan, S., & Miller, J. (2024, February 9). Melatonin. StatPearls.\nhttps:\/\/www.ncbi.nlm.nih.gov\/books\/NBK534823\/\nTuft, C., Matar, E., Menczel Schrire, Z., Grunstein, R. R., Yee, B. J., & Hoyos, C. M. (2023). Current Insights into the Risks of Using Melatonin as a Treatment for Sleep Disorders in Older Adults. Clinical interventions in aging, 18, 49–59.\nhttps:\/\/pubmed.ncbi.nlm.nih.gov\/36660543\/\nShenoy, P., Etcheverry, A., Ia, J., WItmans, M., & Tablizo, M. (2024, March 9). Melatonin Use in Pediatrics: A Clinical Review of Indications, Multisystem Effects, and Toxicity.  Children, 11, 323.\nhttps:\/\/www.mdpi.com\/2227-9067\/11\/3\/323\nBesag, F. M. C., Vasey, M. J., Lao, K. S. J., & Wong, I. C. K. (2019). Adverse Events Associated with Melatonin for the Treatment of Primary or Secondary Sleep Disorders: A Systematic Review. CNS drugs, 33(12), 1167–1186.\nhttps:\/\/pubmed.ncbi.nlm.nih.gov\/31722088\/\nWebley, G. E., & Leidenberger, F. (1986). The circadian pattern of melatonin and its positive relationship with progesterone in women. The Journal of Clinical Endocrinology and Metabolism, 63(2), 323–328.\nhttps:\/\/pubmed.ncbi.nlm.nih.gov\/3722324\/\nLearn More About Melatonin","attrs_markdown":"[Skip to content](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#post_content)\n\n[![Sleep Foundation Logo](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/10\/sd-logo.svg)](https:\/\/www.sleepfoundation.org\/)\n\n![Sleep Foundation Logo](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/10\/sd-logo.svg)\n\n![Sleep Foundation Logo](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/10\/sd-logo.svg)\n\nSLEEP PRODUCTS\n\n- Mattresses\n  Mattresses\n  \n  - [All Mattresses](https:\/\/www.sleepfoundation.org\/best-mattress)\n  - [Best Mattress of 2026](https:\/\/www.sleepfoundation.org\/best-mattress)\n  - Best of\n    - [Best Mattress for Side Sleepers](https:\/\/www.sleepfoundation.org\/best-mattress\/best-mattress-for-side-sleepers)\n    - [Best Mattress for Back Pain](https:\/\/www.sleepfoundation.org\/best-mattress\/best-mattress-for-back-pain)\n    - 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[Best Mattress for Heavy People](https:\/\/www.sleepfoundation.org\/best-mattress\/best-mattress-for-heavy-sleepers)\n    - MATERIAL\n      - [Best Memory Foam Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-memory-foam-mattress)\n      - [Best Latex Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-latex-mattress)\n      - [Best Innerspring Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-innerspring-mattress)\n      - [Best Hybrid Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-hybrid-mattress)\n    - COMFORT\n      - [Best Cooling Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-cooling-mattress)\n      - [Best Firm Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-firm-mattress)\n      - [Best Organic Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-organic-mattresses)\n      - [Most Comfortable Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/most-comfortable-mattresses)\n    - OTHER\n      - [Best Mattress in a Box](https:\/\/www.sleepfoundation.org\/best-mattress\/best-mattress-in-a-box)\n      - [Best Affordable Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-cheap-mattress)\n      - [Best King Size Mattress](https:\/\/www.sleepfoundation.org\/best-mattress\/best-king-mattress)\n      - [Best Mattress for Kids](https:\/\/www.sleepfoundation.org\/best-mattress\/best-mattress-for-kids)\n    - [![Mattress Finder](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2024\/04\/Mattresses-in-the-Sleep-Foundation-Test-Lab-3-300x125.jpg) Mattress Finder](https:\/\/www.sleepfoundation.org\/mattress-quiz\/results)   [![mattress sizes](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/02\/mattress-sizes-300x225.jpg) Mattress Sizes 101: Finding Your Perfect Fit](https:\/\/www.sleepfoundation.org\/mattress-sizes)\n  - Reviews\n    - POPULAR BRANDS\n      - [Casper](https:\/\/www.sleepfoundation.org\/mattress-reviews\/casper-mattress-review)\n      - [Saatva](https:\/\/www.sleepfoundation.org\/mattress-reviews\/saatva-mattress-review)\n      - [Sleep Number](https:\/\/www.sleepfoundation.org\/mattress-reviews\/sleep-number-classic-series-mattress-review)\n    - FOAM\n      - [Nectar Mattress](https:\/\/www.sleepfoundation.org\/mattress-reviews\/nectar-mattress-review)\n      - [Bear](https:\/\/www.sleepfoundation.org\/mattress-reviews\/bear-mattress-review)\n      - [Loom & Leaf](https:\/\/www.sleepfoundation.org\/mattress-reviews\/loom-and-leaf-mattress-review)\n      - [Tempur-Pedic](https:\/\/www.sleepfoundation.org\/mattress-reviews\/tempurpedic-adapt-mattress-review)\n    - HYBRID\n      - [Helix Mattress](https:\/\/www.sleepfoundation.org\/mattress-reviews\/helix-mattress-review)\n      - [DreamCloud Mattress](https:\/\/www.sleepfoundation.org\/mattress-reviews\/dreamcloud-mattress-review)\n      - [WinkBed Mattress](https:\/\/www.sleepfoundation.org\/mattress-reviews\/winkbed-mattress-review)\n    - [![Mattress Finder](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2024\/04\/Mattresses-in-the-Sleep-Foundation-Test-Lab-3-300x125.jpg) Mattress Finder](https:\/\/www.sleepfoundation.org\/mattress-quiz\/results)   [![mattress sizes](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/02\/mattress-sizes-300x225.jpg) Mattress Sizes 101: Finding Your Perfect Fit](https:\/\/www.sleepfoundation.org\/mattress-sizes)\n  - Compare\n    - MATTRESS MATCH\n      - [Mattress Finder Tool](https:\/\/www.sleepfoundation.org\/mattress-quiz\/results)\n      - [Take the Mattress Quiz](https:\/\/www.sleepfoundation.org\/mattress-quiz)\n    - POPULAR BRANDS\n      - [Nectar vs. Casper](https:\/\/www.sleepfoundation.org\/mattress-comparisons\/nectar-vs-casper)\n      - [Tempur-Pedic vs. Sleep Number](https:\/\/www.sleepfoundation.org\/mattress-comparisons\/tempurpedic-vs-sleep-number)\n    - LEARN\n      - [Do You Need a Box Spring?](https:\/\/www.sleepfoundation.org\/mattress-information\/do-you-need-a-box-spring)\n      - [What is Memory Foam?](https:\/\/www.sleepfoundation.org\/mattress-information\/what-is-memory-foam)\n    - [![Mattress Finder](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2024\/04\/Mattresses-in-the-Sleep-Foundation-Test-Lab-3-300x125.jpg) Mattress Finder](https:\/\/www.sleepfoundation.org\/mattress-quiz\/results)   [![mattress sizes](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/02\/mattress-sizes-300x225.jpg) Mattress Sizes 101: Finding Your Perfect Fit](https:\/\/www.sleepfoundation.org\/mattress-sizes)\n  - [All Mattresses](https:\/\/www.sleepfoundation.org\/best-mattress)\n- Bedding\n  Bedding\n  \n  - [All](https:\/\/www.sleepfoundation.org\/best-bedding)\n  - Pillows & Bedding\n    - PILLOWS\n      - [The Best Pillows of 2026](https:\/\/www.sleepfoundation.org\/best-pillows)\n      - [The Best Pillows for Side Sleepers](https:\/\/www.sleepfoundation.org\/best-pillows\/best-pillow-for-side-sleepers)\n      - [The Best Pillows for Neck Pain](https:\/\/www.sleepfoundation.org\/best-pillows\/best-pillow-for-neck-pain)\n    - SHEETS\n      - [Top-Rated Bed Sheets](https:\/\/www.sleepfoundation.org\/best-sheets)\n      - [Best Cooling Sheets](https:\/\/www.sleepfoundation.org\/best-sheets\/best-cooling-sheets)\n    - BEDDING\n      - [The Best Weighted Blankets of 2026](https:\/\/www.sleepfoundation.org\/best-weighted-blankets)\n      - [The Best Bedding of 2026](https:\/\/www.sleepfoundation.org\/best-bedding)\n      - [The Best Comforters](https:\/\/www.sleepfoundation.org\/best-bedding\/best-comforter)\n    - [![Best Cooling Comforters of 2026](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/Saatva-Lightweight-Down-Alternative-Comforter-253x140-1.jpeg) Best Cooling Comforters of 2026](https:\/\/www.sleepfoundation.org\/best-bedding\/best-cooling-comforter)\n  - Mattress Toppers & More\n    - MATTRESS TOPPERS\n      - [The Best Mattress Toppers](https:\/\/www.sleepfoundation.org\/best-mattress-toppers)\n      - [Best Cooling Mattress Toppers](https:\/\/www.sleepfoundation.org\/best-mattress-toppers\/best-cooling-mattress-topper)\n      - [Best Memory Foam Mattress Toppers](https:\/\/www.sleepfoundation.org\/best-mattress-toppers\/best-memory-foam-mattress-topper)\n    - MATTRESS PADS\n      - [Best Mattress Pads](https:\/\/www.sleepfoundation.org\/best-mattress-pads)\n      - [Cooling Mattress Pads](https:\/\/www.sleepfoundation.org\/best-mattress-pads\/best-cooling-mattress-pad)\n    - PROTECTORS\n      - [The Best Mattress Protectors of 2026](https:\/\/www.sleepfoundation.org\/best-mattress-protectors)\n      - [Best Full Mattress Encasements](https:\/\/www.sleepfoundation.org\/best-mattress-protectors\/best-mattress-encasements)\n    - [![Best Cooling Comforters of 2026](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/Saatva-Lightweight-Down-Alternative-Comforter-253x140-1.jpeg) Best Cooling Comforters of 2026](https:\/\/www.sleepfoundation.org\/best-bedding\/best-cooling-comforter)\n  - [All Bedding](https:\/\/www.sleepfoundation.org\/best-bedding)\n- Sleep Solutions\n  Sleep Solutions\n  \n  - [All Solutions](https:\/\/www.sleepfoundation.org\/sleep-solutions)\n  - Get Sleep Tested\n    - AT-HOME TESTING\n      - [Buy an At-Home Sleep Test](https:\/\/www.sleepfoundation.org\/home-sleep-test?cta_location=main_menu)\n      - [What's an At-Home Sleep Test?](https:\/\/www.sleepfoundation.org\/sleep-studies\/at-home-sleep-study)\n    - IN-LAB TESTING\n      - [How Does a Sleep Study Work?](https:\/\/www.sleepfoundation.org\/sleep-studies\/how-does-a-sleep-study-work)\n      - [How Much Does a Sleep Study Cost?](https:\/\/www.sleepfoundation.org\/sleep-studies\/how-much-does-a-sleep-study-cost)\n    - [![At Home Sleep Study](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/SF_HST_CTA_Image-1-300x161.png) At Home Sleep Study](https:\/\/www.sleepfoundation.org\/home-sleep-test)   [![ResMed\\_AirSense\\_11\\_Machine\\_Package\\_1](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/01\/ResMed_AirSense_11_Machine_Package_1-300x300.webp) Best CPAP Machines of 2026](https:\/\/www.sleepfoundation.org\/best-cpap-machines)\n  - Sleep Therapy\n    - CPAP\n      - [The Best CPAP Machines](https:\/\/www.sleepfoundation.org\/best-cpap-machines)\n      - [Top-Rated CPAP Masks](https:\/\/www.sleepfoundation.org\/best-cpap-mask)\n      - [Need Therapy? Start Here](https:\/\/www.sleepfoundation.org\/home-sleep-test?cta_location=main_menu)\n    - ANTI-SNORING\n      - [The Best Anti-Snoring Mouthpieces](https:\/\/www.sleepfoundation.org\/best-anti-snoring-mouthpieces-and-mouthguards)\n      - [Mouth Taping](https:\/\/www.sleepfoundation.org\/snoring\/mouth-taping-for-sleep)\n      - [CPAP Alternatives](https:\/\/www.sleepfoundation.org\/sleep-apnea\/alternatives-to-cpap)\n    - SERVICES & SUPPLEMENTS\n      - [The Best Sleep Apps of 2026](https:\/\/www.sleepfoundation.org\/best-sleep-apps)\n      - [The Best Magnesium Supplements](https:\/\/www.sleepfoundation.org\/magnesium\/best-magnesium-for-sleep)\n      - [Best Sleep Supplements](https:\/\/www.sleepfoundation.org\/sleep-aids\/natural-sleep-aids)\n    - [![At Home Sleep Study](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/SF_HST_CTA_Image-1-300x161.png) At Home Sleep Study](https:\/\/www.sleepfoundation.org\/home-sleep-test)   [![ResMed\\_AirSense\\_11\\_Machine\\_Package\\_1](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/01\/ResMed_AirSense_11_Machine_Package_1-300x300.webp) Best CPAP Machines of 2026](https:\/\/www.sleepfoundation.org\/best-cpap-machines)\n  - Sleep Environment\n    - SLEEP TECH\n      - [The Best Sleep Trackers We've Tested](https:\/\/www.sleepfoundation.org\/best-sleep-trackers)\n      - [Top-Rated White Noise Machines](https:\/\/www.sleepfoundation.org\/best-sleep-products\/best-white-noise-machines)\n    - BED FRAMES\n      - [The Best Adjustable Beds](https:\/\/www.sleepfoundation.org\/best-adjustable-bed)\n      - [Our Favorite Bed Frames](https:\/\/www.sleepfoundation.org\/best-bed-frames)\n    - PERSONAL CARE PRODUCTS\n      - [Blue Light Blocking Glasses](https:\/\/www.sleepfoundation.org\/best-sleep-products\/best-blue-light-blocking-glasses)\n      - [Wake-Up Lights](https:\/\/www.sleepfoundation.org\/best-sleep-products\/best-wake-up-lights)\n      - [Sleep Masks](https:\/\/www.sleepfoundation.org\/best-sleep-products\/best-sleep-masks)\n    - [![At Home Sleep Study](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/SF_HST_CTA_Image-1-300x161.png) At Home Sleep Study](https:\/\/www.sleepfoundation.org\/home-sleep-test)   [![ResMed\\_AirSense\\_11\\_Machine\\_Package\\_1](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/01\/ResMed_AirSense_11_Machine_Package_1-300x300.webp) Best CPAP Machines of 2026](https:\/\/www.sleepfoundation.org\/best-cpap-machines)\n  - [All Solutions](https:\/\/www.sleepfoundation.org\/sleep-solutions)\n- Sleep Health\n  Sleep Health\n  \n  - [All Health](https:\/\/www.sleepfoundation.org\/sleep-topics)\n  - Sleep Disorders\n    - COMMON DISORDERS\n      - [Insomnia](https:\/\/www.sleepfoundation.org\/insomnia)\n      - [Parasomnias](https:\/\/www.sleepfoundation.org\/parasomnias)\n      - [Excessive Sleepiness](https:\/\/www.sleepfoundation.org\/excessive-sleepiness)\n    - BREATHING-RELATED\n      - [Sleep Apnea](https:\/\/www.sleepfoundation.org\/sleep-apnea)\n      - [Obstructive Sleep Apnea](https:\/\/www.sleepfoundation.org\/sleep-apnea\/obstructive-sleep-apnea)\n      - [Central Sleep Apnea](https:\/\/www.sleepfoundation.org\/sleep-apnea\/central-sleep-apnea)\n    - MOVEMENT-RELATED\n      - [Sleepwalking](https:\/\/www.sleepfoundation.org\/parasomnias\/sleepwalking)\n      - [Bruxism](https:\/\/www.sleepfoundation.org\/bruxism)\n      - [Restless Legs Syndrome](https:\/\/www.sleepfoundation.org\/restless-legs-syndrome)\n    - TESTING & TREATMENTS\n      - [CPAP](https:\/\/www.sleepfoundation.org\/cpap)\n      - [Home Sleep Test](https:\/\/www.sleepfoundation.org\/sleep-studies\/at-home-sleep-study)\n      - [What to Do When You Can't Sleep](https:\/\/www.sleepfoundation.org\/insomnia\/treatment\/what-do-when-you-cant-sleep)\n    - [![Woman Taking Melatonin](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/woman-with-melatonin-300x200.jpg) Melatonin Dosage: How Much Melatonin to Take](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-how-much-should-you-take)   [![group of people drinking coffee](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/09\/group-of-people-drinking-coffee-300x200.jpg) 94% of Us Drink Caffeinated Beverages. But What Does it do to Our Sleep?](https:\/\/www.sleepfoundation.org\/sleep-news\/94-percent-of-us-drink-caffeinated-beverages)\n  - Improve Your Sleep\n    - SLEEP HABITS\n      - [The Ultimate Sleep Improvement Plan](https:\/\/www.sleepfoundation.org\/sleep-habits)\n      - [The 20 Most Proven Sleep Tips](https:\/\/www.sleepfoundation.org\/sleep-hygiene\/healthy-sleep-tips)\n      - [Sleep Hygiene](https:\/\/www.sleepfoundation.org\/sleep-hygiene)\n    - SLEEP AIDS\n      - [Melatonin](https:\/\/www.sleepfoundation.org\/melatonin)\n      - [Magnesium](https:\/\/www.sleepfoundation.org\/magnesium)\n      - [The Most Effective Sleep Aids](https:\/\/www.sleepfoundation.org\/sleep-aids)\n    - TOOLS & PRODUCTS\n      - [Sleep Calculator](https:\/\/www.sleepfoundation.org\/sleep-calculator)\n      - [7 Nights to Better Sleep](https:\/\/www.sleepfoundation.org\/sleep-habits\/7-night-sleep-habit-builder)\n      - [Submit Your Sleep Story](https:\/\/www.sleepfoundation.org\/about-us\/submit-your-sleep-story)\n    - [![Woman Taking Melatonin](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/woman-with-melatonin-300x200.jpg) Melatonin Dosage: How Much Melatonin to Take](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-how-much-should-you-take)   [![group of people drinking coffee](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/09\/group-of-people-drinking-coffee-300x200.jpg) 94% of Us Drink Caffeinated Beverages. But What Does it do to Our Sleep?](https:\/\/www.sleepfoundation.org\/sleep-news\/94-percent-of-us-drink-caffeinated-beverages)\n  - Understand Your Sleep\n    - SCIENCE OF SLEEP\n      - [How Sleep Works](https:\/\/www.sleepfoundation.org\/how-sleep-works)\n      - [Circadian Rhythm](https:\/\/www.sleepfoundation.org\/circadian-rhythm)\n      - [The Stages of Sleep](https:\/\/www.sleepfoundation.org\/stages-of-sleep)\n    - IMPACTS\n      - [Snoring](https:\/\/www.sleepfoundation.org\/snoring)\n      - [Sleep Deprivation](https:\/\/www.sleepfoundation.org\/sleep-deprivation)\n      - [How Electronics Affect Your Sleep](https:\/\/www.sleepfoundation.org\/how-sleep-works\/how-electronics-affect-sleep)\n    - STATISTICS\n      - [Sleep Data & Research](https:\/\/www.sleepfoundation.org\/how-sleep-works\/sleep-facts-statistics)\n      - [How Much Sleep Do We Need?](https:\/\/www.sleepfoundation.org\/how-sleep-works\/how-much-sleep-do-we-really-need)\n    - [![Woman Taking Melatonin](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/woman-with-melatonin-300x200.jpg) Melatonin Dosage: How Much Melatonin to Take](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-how-much-should-you-take)   [![group of people drinking coffee](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/09\/group-of-people-drinking-coffee-300x200.jpg) 94% of Us Drink Caffeinated Beverages. But What Does it do to Our Sleep?](https:\/\/www.sleepfoundation.org\/sleep-news\/94-percent-of-us-drink-caffeinated-beverages)\n  - [All Health](https:\/\/www.sleepfoundation.org\/sleep-topics)\n- About Us\n  About Us\n  \n  - Who We Are\n    - OUR MISSION\n      - [What We Do](https:\/\/www.sleepfoundation.org\/about-us)\n      - [Our Team](https:\/\/www.sleepfoundation.org\/about-us\/who-we-are)\n    - OUR MEDICAL TEAM\n      - [Medical Advisory Board](https:\/\/www.sleepfoundation.org\/about-us\/who-we-are#medical-advisory-board)\n    - OUR PROCESS\n      - [Editorial Policy](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy)\n      - [How We Review Products](https:\/\/www.sleepfoundation.org\/research-methodology)\n    - [![Test Lab: Expert Tested. Sleeper Approved.](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/08\/Bedroom-Environment-1-300x125.jpg) Test Lab: Expert Tested. Sleeper Approved.](https:\/\/www.sleepfoundation.org\/research-methodology)   [![Sleep Video Library](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/04\/best_clips.00_09_45_18.still029_720-300x169.jpg) Sleep Video Library](https:\/\/www.sleepfoundation.org\/video)\n  - [Contact Us](https:\/\/www.sleepfoundation.org\/about-us\/contact)\n- [Community](https:\/\/community.sleepfoundation.org\/)\n- [Sleep Quiz](https:\/\/www.sleepfoundation.org\/sleep-quiz)\n\n- [![Facebook Icon](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/02\/sf-facebook.svg)](https:\/\/www.facebook.com\/sleepisthefoundation\/)\n- [![Twitter Icon](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/07\/sf-twitter.svg)](https:\/\/twitter.com\/sleepisthefound)\n- [![YouTube Icon](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/07\/social_youtube.svg)](https:\/\/www.youtube.com\/c\/SleepIsTheFoundation)\n- [![Instagram Icon](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/07\/sf-instagram.svg)](https:\/\/www.instagram.com\/sleepisthefoundation)\n- [![LinkedIn Icon](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/02\/sf-linkedin.svg)](https:\/\/www.linkedin.com\/showcase\/sleepisthefoundation)\n- [![TikTok Icon](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/02\/sf-tiktok.svg)](https:\/\/www.tiktok.com\/@sleepisthefoundation)\n\nWhen you buy through our links, we may earn a commission. Products or services may be offered by an affiliated entity. [Learn more.](https:\/\/www.sleepfoundation.org\/about-us\/advertising-disclosure)\n\n[\/](https:\/\/www.sleepfoundation.org\/)  [Melatonin and Sleep](https:\/\/www.sleepfoundation.org\/melatonin)\n\n![Main Intro Section Image](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/07\/Header-Image-8-1.svg)\n\n# Can You Overdose on Melatonin?\nUpdated August 29, 2025\n\nWritten by Jay Vera Summer\n\n![Jay Vera Summer](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/01\/jay-vera-summer-2025-profile-photo-150x150.jpg)\n\nJay Vera Summer\n\nContributing Writer\n\nJay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy.\n\n[Read Full Bio](https:\/\/www.sleepfoundation.org\/about-us\/who-we-are#jay_vera_summer)\n\nWant to read more about all our experts in the field?\n\n[Learn About The Editorial Team](https:\/\/www.sleepfoundation.org\/about-us)\n\n\\| Medically Reviewed by Dustin Cotliar, MD, MPH\n\n![Dustin Cotliar, MD, MPH](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/10\/profiledustin-cotliar-150x150.jpeg)\n\nDustin Cotliar, MD, MPH\n\nPhysician\n\nDustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine.\n\n[Read Full Bio](https:\/\/www.sleepfoundation.org\/about-us\/who-we-are#dustin_cotliar,_md,_mph)\n\nWant to read more about all our experts in the field?\n\n[Learn About The Editorial Team](https:\/\/www.sleepfoundation.org\/about-us)\n\n- [How Much Melatonin Is Too Much?](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#how-much-melatonin)\n- [What Happens if You Take Too Much Melatonin?](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#what-happen-if-you-take-too-much)\n- [Can Children Overdose on Melatonin?](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#children)\n- [What Is the Treatment for a Melatonin Overdose?](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#treatment)\n- [When Should I Talk With a Doctor?](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#when-should-i-talk-with-a-doctor)\n\nKey Takeaways\n\n- There’s no standard dosage of melatonin, but most adults should take between 1 to 5 milligrams and not exceed 10 milligrams a day.\n- You should talk to a doctor before giving melatonin to children and not exceed doses of 3 milligrams for kids 5 and up. Kids under 5 should not take melatonin.\n- In most cases, you can treat melatonin overdoses with time and rest. Very few require hospitalization.\n- Life-threatenting overdoses are rare, but overdoses can cause noticeable side effects, including difficulty breathing, seizures, or a loss of consciousness.\n\nMelatonin is one of the most popular [sleep aids](https:\/\/www.sleepfoundation.org\/sleep-aids). In fact, in a recent Sleep Foundation survey, it topped the list of sleep aids, with 58% of respondents reporting they had previously used melatonin.\n\nAnd though it’s been found generally safe with few serious side effects  [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) CNS Drugs[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-78439) , there’s still a risk of melatonin overdose if you take too much. In recent years, poison centers have received five times the number of calls about melatonin overdose [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) Centers for Disease Control and PreventionCDC is the nation’s leading science-based, data-driven, service organization that protects the public’s health.[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-255043) as they did 20 years ago. Emergency rooms have seen four times as many children and infants coming in after unintentional melatonin ingestion.\n\nIt’s important to be aware of the safety risks posed by taking too much melatonin. Below, we take a closer look at [melatonin dosing](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-how-much-should-you-take), potential symptoms of a melatonin overdose, and when to contact a doctor.\n\n[![](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2009\/04\/MomentousEliteSleep-2-768x768.webp)Our Top Melatonin Supplement We’ve tried a lot of melatonin supplements and we’ve even made our own. The ones from Momentous are our favorite. From Our Partners at SleepDoctor.com. Shop at Sleep Doctor](https:\/\/sleepdoctor.com\/products\/elite-sleep)\n\n## How Much Melatonin Is Too Much?\nRecommended melatonin dosage varies depending on a person’s age. Experts generally recommend adults take between 1 and 5 milligrams of melatonin to [promote better sleep](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-benefits).  [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) UpToDateMore than 2 million healthcare providers around the world choose UpToDate to help make appropriate care decisions and drive better health outcomes. UpToDate delivers evidence-based clinical decision support that is clear, actionable, and rich with real-world insights.[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-255045)\n\nMost adults shouldn’t need to take more than 5 milligrams of melatonin a day, and researchers have found that more than 10 milligrams of melatonin a day is too much  [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) Children[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-284167) .\n\nIt’s important to talk to your doctor before beginning [melatonin supplementation](https:\/\/www.sleepfoundation.org\/melatonin). Start with a low dose of melatonin to see how your body reacts, then gradually increase the dosage if needed. Small doses, such as 1 milligram or less, may be just as effective as higher doses.\n\nStarting with a low dose is especially important, because some melatonin supplements contain a higher dose [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) JAMAJAMA, published continuously since 1883, is an international peer-reviewed general medical journal.[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-253053) than what’s listed on the label.\n\nIn the U.S., dietary supplements including melatonin aren’t tested by the Food and Drug Administration (FDA) for safety or accuracy prior to being sold, so the listed amount may be slightly or significantly different from what’s actually present in the supplement. Some supplements may also include more than just melatonin.\n\nIt’s also important to note that different formulations of melatonin, such as pill, powder, gummy, or liquid, may be absorbed differently [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) StatPearls[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-255049) by the body. Our survey results indicate that melatonin users are at least three times more likely to use capsules, tablets, or gummies than they are any other type of formulation.\n\nThere also isn’t any information on how melatonin affects the body long-term. Experts recommend melatonin use for up to 3 months at a time.\n\n“Most people end up taking more melatonin than they actually need because of mislabeling. Many products contain higher doses than what’s actually listed.”\n\n![Dustin Cotliar, MD, MPH](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/10\/profiledustin-cotliar-150x150.jpeg)\n\nDustin Cotliar, MD, MPH\n\nPhysician\n## **What Happens if You Take Too Much Melatonin?**\nIt’s unlikely that you’ll have a life-threatening reaction to a melatonin overdose. Generally, [melatonin isn’t bad for you](https:\/\/www.sleepfoundation.org\/melatonin\/is-melatonin-bad-for-you). Melatonin is a hormone that your body naturally produces, so if you take too much your body just has an excess supply that will take longer than normal for it to process.\n\nResearchers haven’t found a lethal dose of melatonin  [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) StatPearls[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-271560) . However, if you take too much, you may experience unpleasant—though non-serious—side effects.\n\n### Symptoms of a Melatonin Overdose\nA life-threatening melatonin overdose is rare, especially in adults. [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) Clinical Interventions in Aging[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-255047) But melatonin supplements with higher doses can cause adverse reactions and [side effects](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-side-effects), including:\n\n- Nightmares\n- Headaches\n- Irritability\n- Stomach pain\n- Nausea\n- Daytime tiredness\n- Dizziness\n- Short-term depression symptoms\n\nIn our survey, the most commonly reported symptoms included daytime drowsiness (24%), vivid dreams or nightmares (17%), headache (15%), and difficulty waking up (15%). Half said they’d never experienced any of the listed side effects.\n\nIt’s important to note, though, that these are known side effects and not necessarily indications of an overdose. Drug overdose symptoms that require immediate emergency medical attention include difficulty breathing, seizures, or a loss of consciousness.\n\n### **What to Do if You’re Experiencing Melatonin Overdose Symptoms**\nIf you suspect you or someone else is experiencing a melatonin overdose, contact a poison control center. You can talk to a poison expert at[PoisonHelp.org](https:\/\/www.poisonhelp.org\/) or by calling (800) 222-1222 in the U.S.\n\nIf you or someone else is experiencing severe symptoms, such as difficulty breathing, seizures, or a loss of consciousness, immediately call 9-1-1 or go to the emergency room. Ingesting melatonin may be particularly dangerous if you’ve consumed other medications or alcohol.\n## **Can Children Overdose on Melatonin?**\nExperts don’t recommend melatonin for children under 5, and they caution against doses above 3 milligrams for kids 5 and up. Even though [melatonin for kids](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-for-children) is available without a prescription in the U.S., you shouldn’t give melatonin to a child without discussing it with their doctor first.\n\n“Some melatonin supplements look and taste similar to candy. This makes it important for parents to store all supplements and medications in child-safe bottles and outside the reach of children.”\n\n![Dustin Cotliar, MD, MPH](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/10\/profiledustin-cotliar-150x150.jpeg)\n\nDustin Cotliar, MD, MPH\n\nPhysician\n\nChildren can experience side effects of melatonin overdose, but serious symptoms are rare and experts haven’t found a lethal melatonin dose for adults or children. Kids produce more melatonin than adults do naturally, so it’s important to keep dosage low. If children ingest more melatonin than their body can process, they may experience the following side effects.\n\n- Nightmares\n- Headaches\n- Irritability\n- Stomach pain\n- Nausea\n- Daytime tiredness\n- Dizziness\n- Bedwetting\n\nMelatonin supplements are sometimes used to treat children who have [insomnia](https:\/\/www.sleepfoundation.org\/insomnia), other sleep disorders, or neurodevelopmental disorders, like autism, attention-deficit hyperactivity disorder (ADHD), or epilepsy. [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) Children[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-255053) Lower doses are thought to be safer and more effective than higher doses.\n\n![](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/SF-23-082_Melatonin_Graphic_Updated-1-1024x701.png)\n\n## **What Is the Treatment for a Melatonin Overdose?**\nThere’s no specific antidote for a melatonin overdose, and treatment typically focuses on managing symptoms. In most cases, mild melatonin overdoses can be treated at home by stopping use and allowing the supplement to naturally clear from the body.\n\nDon’t attempt to induce vomiting if you suspect a melatonin overdose. Instead, wait in a safe place for symptoms to pass. Common symptoms, such as drowsiness, headache, nausea, or dizziness, often resolve within a few hours.\n\nIf symptoms are more severe or prolonged, medical attention may be necessary. A healthcare provider may recommend supportive care, such as hydration, rest, or monitoring heart rate and blood pressure if irregularities are present.\n\nIn rare cases, especially when melatonin is taken in very high doses or combined with other medications, evaluation at a hospital or poison control center may be needed to ensure safety. If you experience difficulty breathing, loss of consciousness, or seizures, call 9-1-1 or go to the emergency room. You can also talk to an expert at [PoisonHelp.org](https:\/\/www.poisonhelp.org\/).\n\n## Say Goodbye to Insomnia\nSign up to receive emails about how to improve your sleep, as well as our comprehensive Better Sleep Guidebook.\n\n![](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2018\/10\/Email-Capture-Icon.svg)\n## When Should I Talk With a Doctor?\nAlthough melatonin has largely been found to be safe, talk to your doctor before beginning to take it or any dietary supplement. People often assume dietary supplements are safe, but they aren’t tested by the FDA for quality or accuracy, like prescription drugs are. Survey responses show that nearly 34% of people don’t seek out third-party researchers before buying a sleep aid.\n\nSupplements may also cause side effects or interact with prescription drugs. Melatonin effects on pregnant and post-partum people haven’t been significantly studied. Speak with a doctor if you’re pregnant or nursing.\n\nIf you’re taking melatonin and experience serious side effects or are concerned about overdose, call poison control or seek emergency medical attention immediately.\n\n## Frequently Asked Questions\n### How long do melatonin side effects last?\nMelatonin side effects—such as grogginess, dizziness, headache, or nausea—usually resolve within a few hours as the supplement leaves your system. The exact duration can depend on the dose taken, your metabolism, and whether melatonin was combined with other substances like alcohol or sedating medications. In most cases, side effects are mild and temporary.  \n  \nIf symptoms persist longer than a few hours or are severe, it’s best to contact a healthcare professional.\n\n### What are the long-term effects of taking melatonin?\nIn the short-term, you can [take melatonin every night](https:\/\/www.sleepfoundation.org\/melatonin\/is-it-safe-to-take-melatonin-every-night), but long-term use hasn’t been widely studied. Most studies have only followed people using melatonin for about a month. Although longer-term studies haven’t found serious adverse events from using melatonin, experts say there isn’t enough research available to conclude that long-term use [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) CNS Drugs[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-255051) of melatonin is safe.\n\n### Can you build a tolerance to melatonin?\nMelatonin does not typically lead to physical dependence or tolerance in the way that some sleep medications do. However, some people may feel that melatonin becomes less effective over time, especially if taken in high doses or used nightly without addressing the root cause of sleep issues. This reduced effectiveness may be due to changes in your body’s natural melatonin production or sleep patterns rather than true tolerance.  \n  \nIf melatonin seems to stop working, it’s a good idea to take a break or consult a healthcare provider to explore other sleep strategies.\n\n### What shouldn’t you take with melatonin?\nYou should avoid taking melatonin with alcohol, caffeine, and certain prescription medications. Alcohol and caffeine can affect your sleep-wake cycle and impact natural melatonin production. Birth control may increase natural melatonin production, too, so taking a melatonin supplement alongside birth control could result in more melatonin than your body can process  [Trusted Source](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy) The Journal of Clinical Endocrinology and Metabolism[View Source](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#references-82188) .  \n  \nCertain anxiety and depression medications can have interactions with melatonin, including some SSRIs and sedatives. Melatonin can boost your immune system, so if you’re taking immunosuppressants, you may want to avoid melatonin. Melatonin can also interfere with prescription drugs that are used to treat sleep disorders.  \n  \nConsult your physician before taking melatonin, especially if you take other prescription medications.\n\n![](https:\/\/www.sleepfoundation.org\/wp-content\/themes\/onecaremedia-child\/assets\/images\/sf-question-bubble.svg)\n\n### Still have questions? Ask our community\\!\nJoin our [Sleep Care Community](https:\/\/community.sleepfoundation.org\/) — a trusted hub of sleep health professionals, product specialists, and people just like you. Whether you need expert sleep advice for your insomnia or you’re searching for the perfect mattress, we’ve got you covered. Get personalized guidance from the experts who know sleep best.\n\n[About Our Editorial Team](https:\/\/www.sleepfoundation.org\/about-us)\n\n![Jay Vera Summer](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/01\/jay-vera-summer-2025-profile-photo-150x150.jpg)\n\nWritten By\n\n### Jay Vera Summer,  Contributing Writer\n\nJay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy.\n\n![Dustin Cotliar, MD, MPH](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/10\/profiledustin-cotliar-150x150.jpeg)\n\nMedically Reviewed by\n\n### Dustin Cotliar, MD, MPH,  Physician\n\nDustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine.\n\n[Learn more about our Editorial Team](https:\/\/www.sleepfoundation.org\/about-us\/who-we-are#team)\n\n## References 11 Sources\n1. Besag, F., Vasey, M. J., Lao, K., & Wong, I. (2019). Adverse events associated with melatonin for the treatment of primary or secondary sleep disorders: A systematic review. CNS Drugs, 33(12), 1167–1186.\n   <https:\/\/pubmed.ncbi.nlm.nih.gov\/31722088\/>\n2. Freeman, D., Lind, J., Weidle, D., et al. Centers for Disease Control and Prevention. (2024, March 7). Emergency Department Visits for Unsupervised Pediatric Melatonin Ingestion – United States, 2019-2022. Morbidity and Mortality Weekly Report. Centers for Disease Control and Prevention.\n   <https:\/\/www.cdc.gov\/mmwr\/volumes\/73\/wr\/pdfs\/mm7309a5-H.pdf>\n3. Neubauer, D. (2024, March). Pharmacotherapy for insomnia in adults. In R. Benca, J. Elmore, & A. Eichler (Ed.). UpToDate.\n   <https:\/\/www.uptodate.com\/contents\/pharmacotherapy-for-insomnia-in-adults>\n4. Shenoy P, Etcheverry A, Ia J, Witmans M, Tablizo MA. Melatonin Use in Pediatrics: A Clinical Review on Indications, Multisystem Effects, and Toxicity. Children. 2024; 11(3):323.\n   <https:\/\/www.mdpi.com\/2227-9067\/11\/3\/323>\n5. Cohen, P. A., Avula, B., Wang, Y. H., Katragunta, K., & Khan, I. (2023). Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US. JAMA, 329(16), 1401–1402.\n   <https:\/\/pubmed.ncbi.nlm.nih.gov\/37097362\/>\n6. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2022, August 8). Melatonin. StatPearls.\n   <https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK534823\/>\n7. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2024, February 9). Melatonin. StatPearls.\n   <https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK534823\/>\n8. Tuft, C., Matar, E., Menczel Schrire, Z., Grunstein, R. R., Yee, B. J., & Hoyos, C. M. (2023). Current Insights into the Risks of Using Melatonin as a Treatment for Sleep Disorders in Older Adults. Clinical interventions in aging, 18, 49–59.\n   <https:\/\/pubmed.ncbi.nlm.nih.gov\/36660543\/>\n9. Shenoy, P., Etcheverry, A., Ia, J., WItmans, M., & Tablizo, M. (2024, March 9). Melatonin Use in Pediatrics: A Clinical Review of Indications, Multisystem Effects, and Toxicity. Children, 11, 323.\n   <https:\/\/www.mdpi.com\/2227-9067\/11\/3\/323>\n10. Besag, F. M. C., Vasey, M. J., Lao, K. S. J., & Wong, I. C. K. (2019). Adverse Events Associated with Melatonin for the Treatment of Primary or Secondary Sleep Disorders: A Systematic Review. CNS drugs, 33(12), 1167–1186.\n    <https:\/\/pubmed.ncbi.nlm.nih.gov\/31722088\/>\n11. Webley, G. E., & Leidenberger, F. (1986). The circadian pattern of melatonin and its positive relationship with progesterone in women. The Journal of Clinical Endocrinology and Metabolism, 63(2), 323–328.\n    <https:\/\/pubmed.ncbi.nlm.nih.gov\/3722324\/>\n\n## Learn More About Melatonin\n[![Melatonin Dosage for Kids](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/06\/Melatonin-Dosage-for-kids-2-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-for-kids)\n\n[Melatonin Dosage for Kids](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-for-kids)\n\nBy Jay Vera Summer  January 9, 2026\n***\n\n[![Amazon.com photo of the Sleep Is the Foundation Melatonin Gummies](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/10\/Sleep-Is-the-Foundation-Melatonin-Gummies-300x206.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/best-melatonin-gummies)\n\n[Best Melatonin Gummies of 2026](https:\/\/www.sleepfoundation.org\/melatonin\/best-melatonin-gummies)\n\nBy Jeremy Klein  October 22, 2025\n***\n\n[![Amazon.com photo of the Sleep Is the Foundation Melatonin 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Sleep](https:\/\/www.sleepfoundation.org\/sleep-deprivation\/interrupted-sleep)   [How Lack of Sleep Impacts Cognitive Performance](https:\/\/www.sleepfoundation.org\/sleep-deprivation\/lack-of-sleep-and-cognitive-impairment)   [Lack of Sleep May Increase Calorie Consumption](https:\/\/www.sleepfoundation.org\/sleep-deprivation\/lack-sleep-may-increase-calorie-consumption)   [REM Sleep Deprivation and Migraines](https:\/\/www.sleepfoundation.org\/sleep-deprivation\/sleep-deprivation-and-migraines)\n\n### Bedroom Environment\n[How to Create The Ideal Bedroom Environment](https:\/\/www.sleepfoundation.org\/bedroom-environment)   [Light and Sleep](https:\/\/www.sleepfoundation.org\/bedroom-environment\/light-and-sleep)   [What Is White Noise?](https:\/\/www.sleepfoundation.org\/noise-and-sleep\/white-noise)   [Technology In The Bedroom](https:\/\/www.sleepfoundation.org\/bedroom-environment\/technology-in-the-bedroom)   [How Does Music Affect Sleep?](https:\/\/www.sleepfoundation.org\/noise-and-sleep\/music)\n\n### Mattresses\n[Best Mattresses](https:\/\/www.sleepfoundation.org\/best-mattress)   [Best Mattresses for Side Sleepers](https:\/\/www.sleepfoundation.org\/best-mattress\/best-mattress-for-side-sleepers)   [Best Mattresses for Back Pain](https:\/\/www.sleepfoundation.org\/best-mattress\/best-mattress-for-back-pain)   [Cooling Mattresses](https:\/\/www.sleepfoundation.org\/best-mattress\/best-cooling-mattress)   [Hybrid Mattresses](https:\/\/www.sleepfoundation.org\/best-mattress\/best-hybrid-mattress)\n\n[![Sleep Foundation Logo](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/10\/sd-logo-footer.svg)](https:\/\/www.sleepfoundation.org\/)\n\n**Sleep Foundation** and **SleepFoundation.org** are not affiliated with the National Sleep Foundation, an independent nonprofit based in Washington, DC.\n\nThe content on this website is for informational purposes only. SleepFoundation.org does not provide medical advice, diagnosis, or treatment options.\n\nSleep Information\n\n- [Sleep Products](https:\/\/www.sleepfoundation.org\/sleep-solutions)\n- [Sleep Health](https:\/\/www.sleepfoundation.org\/sleep-topics)\n- [Sleep Disorders](https:\/\/www.sleepfoundation.org\/sleep-disorders)\n- [Sleep News](https:\/\/www.sleepfoundation.org\/sleep-news)\n\nSleep Foundation\n\n- [About Us](https:\/\/www.sleepfoundation.org\/about-us)\n- [Contact Us](https:\/\/www.sleepfoundation.org\/about-us\/contact)\n- [Sleep Care Community](https:\/\/community.sleepfoundation.org\/)\n- [How We Review Products](https:\/\/www.sleepfoundation.org\/research-methodology)\n\nSleep Profile\n\nYour daily habits and environment can significantly impact the quality of your sleep. Take the Sleep Quiz to help inform your sleep improvement journey.\n\n[Take the Quiz](https:\/\/www.sleepfoundation.org\/sleep-quiz)\n### Explore Sleep Foundation\n\n- [Editorial Policy](https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy)\n- [Advertising Disclosure](https:\/\/www.sleepfoundation.org\/about-us\/advertising-disclosure)\n- [Privacy Policy](https:\/\/www.sleepfoundation.org\/privacy-policy)\n- [Terms & Conditions](https:\/\/www.sleepfoundation.org\/about-us\/terms-of-use)\n- [Accessibility Statement](https:\/\/www.sleepfoundation.org\/about-us\/accessibility-statement)\n- [Your Privacy Choices](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose)\n\n© 2026 [Sleep Doctor Holdings](https:\/\/corporate.sleepdoctor.com\/), LLC. All rights reserved.","attrs_readable_markdown":"[Skip to content](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-overdose#post_content)\n\nKey Takeaways\n\n- There’s no standard dosage of melatonin, but most adults should take between 1 to 5 milligrams and not exceed 10 milligrams a day.\n- You should talk to a doctor before giving melatonin to children and not exceed doses of 3 milligrams for kids 5 and up. Kids under 5 should not take melatonin.\n- In most cases, you can treat melatonin overdoses with time and rest. Very few require hospitalization.\n- Life-threatenting overdoses are rare, but overdoses can cause noticeable side effects, including difficulty breathing, seizures, or a loss of consciousness.\n\nMelatonin is one of the most popular [sleep aids](https:\/\/www.sleepfoundation.org\/sleep-aids). In fact, in a recent Sleep Foundation survey, it topped the list of sleep aids, with 58% of respondents reporting they had previously used melatonin.\n\nAnd though it’s been found generally safe with few serious side effects  , there’s still a risk of melatonin overdose if you take too much. In recent years, poison centers have received five times the number of calls about melatonin overdose as they did 20 years ago. Emergency rooms have seen four times as many children and infants coming in after unintentional melatonin ingestion.\n\nIt’s important to be aware of the safety risks posed by taking too much melatonin. Below, we take a closer look at [melatonin dosing](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-how-much-should-you-take), potential symptoms of a melatonin overdose, and when to contact a doctor.\n\nRecommended melatonin dosage varies depending on a person’s age. Experts generally recommend adults take between 1 and 5 milligrams of melatonin to [promote better sleep](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-benefits).\n\nMost adults shouldn’t need to take more than 5 milligrams of melatonin a day, and researchers have found that more than 10 milligrams of melatonin a day is too much  .\n\nIt’s important to talk to your doctor before beginning [melatonin supplementation](https:\/\/www.sleepfoundation.org\/melatonin). Start with a low dose of melatonin to see how your body reacts, then gradually increase the dosage if needed. Small doses, such as 1 milligram or less, may be just as effective as higher doses.\n\nStarting with a low dose is especially important, because some melatonin supplements contain a higher dose than what’s listed on the label.\n\nIn the U.S., dietary supplements including melatonin aren’t tested by the Food and Drug Administration (FDA) for safety or accuracy prior to being sold, so the listed amount may be slightly or significantly different from what’s actually present in the supplement. Some supplements may also include more than just melatonin.\n\nIt’s also important to note that different formulations of melatonin, such as pill, powder, gummy, or liquid, may be absorbed differently by the body. Our survey results indicate that melatonin users are at least three times more likely to use capsules, tablets, or gummies than they are any other type of formulation.\n\nThere also isn’t any information on how melatonin affects the body long-term. Experts recommend melatonin use for up to 3 months at a time.\n\n“Most people end up taking more melatonin than they actually need because of mislabeling. Many products contain higher doses than what’s actually listed.”\n\nIt’s unlikely that you’ll have a life-threatening reaction to a melatonin overdose. Generally, [melatonin isn’t bad for you](https:\/\/www.sleepfoundation.org\/melatonin\/is-melatonin-bad-for-you). Melatonin is a hormone that your body naturally produces, so if you take too much your body just has an excess supply that will take longer than normal for it to process.\n\nResearchers haven’t found a lethal dose of melatonin  . However, if you take too much, you may experience unpleasant—though non-serious—side effects.\n\n### Symptoms of a Melatonin Overdose\nA life-threatening melatonin overdose is rare, especially in adults. But melatonin supplements with higher doses can cause adverse reactions and [side effects](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-side-effects), including:\n\n- Nightmares\n- Headaches\n- Irritability\n- Stomach pain\n- Nausea\n- Daytime tiredness\n- Dizziness\n- Short-term depression symptoms\n\nIn our survey, the most commonly reported symptoms included daytime drowsiness (24%), vivid dreams or nightmares (17%), headache (15%), and difficulty waking up (15%). Half said they’d never experienced any of the listed side effects.\n\nIt’s important to note, though, that these are known side effects and not necessarily indications of an overdose. Drug overdose symptoms that require immediate emergency medical attention include difficulty breathing, seizures, or a loss of consciousness.\n\n### **What to Do if You’re Experiencing Melatonin Overdose Symptoms**\nIf you suspect you or someone else is experiencing a melatonin overdose, contact a poison control center. You can talk to a poison expert at[PoisonHelp.org](https:\/\/www.poisonhelp.org\/) or by calling (800) 222-1222 in the U.S.\n\nIf you or someone else is experiencing severe symptoms, such as difficulty breathing, seizures, or a loss of consciousness, immediately call 9-1-1 or go to the emergency room. Ingesting melatonin may be particularly dangerous if you’ve consumed other medications or alcohol.\n\nExperts don’t recommend melatonin for children under 5, and they caution against doses above 3 milligrams for kids 5 and up. Even though [melatonin for kids](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-for-children) is available without a prescription in the U.S., you shouldn’t give melatonin to a child without discussing it with their doctor first.\n\n“Some melatonin supplements look and taste similar to candy. This makes it important for parents to store all supplements and medications in child-safe bottles and outside the reach of children.”\n\n![Dustin Cotliar, MD, MPH](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/10\/profiledustin-cotliar-150x150.jpeg)\n\nDustin Cotliar, MD, MPH\n\nPhysician\n\nChildren can experience side effects of melatonin overdose, but serious symptoms are rare and experts haven’t found a lethal melatonin dose for adults or children. Kids produce more melatonin than adults do naturally, so it’s important to keep dosage low. If children ingest more melatonin than their body can process, they may experience the following side effects.\n\n- Nightmares\n- Headaches\n- Irritability\n- Stomach pain\n- Nausea\n- Daytime tiredness\n- Dizziness\n- Bedwetting\n\nMelatonin supplements are sometimes used to treat children who have [insomnia](https:\/\/www.sleepfoundation.org\/insomnia), other sleep disorders, or neurodevelopmental disorders, like autism, attention-deficit hyperactivity disorder (ADHD), or epilepsy. Lower doses are thought to be safer and more effective than higher doses.\n\n![](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/SF-23-082_Melatonin_Graphic_Updated-1-1024x701.png)\n\nThere’s no specific antidote for a melatonin overdose, and treatment typically focuses on managing symptoms. In most cases, mild melatonin overdoses can be treated at home by stopping use and allowing the supplement to naturally clear from the body.\n\nDon’t attempt to induce vomiting if you suspect a melatonin overdose. Instead, wait in a safe place for symptoms to pass. Common symptoms, such as drowsiness, headache, nausea, or dizziness, often resolve within a few hours.\n\nIf symptoms are more severe or prolonged, medical attention may be necessary. A healthcare provider may recommend supportive care, such as hydration, rest, or monitoring heart rate and blood pressure if irregularities are present.\n\nIn rare cases, especially when melatonin is taken in very high doses or combined with other medications, evaluation at a hospital or poison control center may be needed to ensure safety. If you experience difficulty breathing, loss of consciousness, or seizures, call 9-1-1 or go to the emergency room. You can also talk to an expert at [PoisonHelp.org](https:\/\/www.poisonhelp.org\/).\n\n## Say Goodbye to Insomnia\nSign up to receive emails about how to improve your sleep, as well as our comprehensive Better Sleep Guidebook.\n\n![](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2018\/10\/Email-Capture-Icon.svg)\n\nAlthough melatonin has largely been found to be safe, talk to your doctor before beginning to take it or any dietary supplement. People often assume dietary supplements are safe, but they aren’t tested by the FDA for quality or accuracy, like prescription drugs are. Survey responses show that nearly 34% of people don’t seek out third-party researchers before buying a sleep aid.\n\nSupplements may also cause side effects or interact with prescription drugs. Melatonin effects on pregnant and post-partum people haven’t been significantly studied. Speak with a doctor if you’re pregnant or nursing.\n\nIf you’re taking melatonin and experience serious side effects or are concerned about overdose, call poison control or seek emergency medical attention immediately.\n\n## Frequently Asked Questions\n### How long do melatonin side effects last?\nMelatonin side effects—such as grogginess, dizziness, headache, or nausea—usually resolve within a few hours as the supplement leaves your system. The exact duration can depend on the dose taken, your metabolism, and whether melatonin was combined with other substances like alcohol or sedating medications. In most cases, side effects are mild and temporary.\n\nIf symptoms persist longer than a few hours or are severe, it’s best to contact a healthcare professional.\n\n### What are the long-term effects of taking melatonin?\nIn the short-term, you can [take melatonin every night](https:\/\/www.sleepfoundation.org\/melatonin\/is-it-safe-to-take-melatonin-every-night), but long-term use hasn’t been widely studied. Most studies have only followed people using melatonin for about a month. Although longer-term studies haven’t found serious adverse events from using melatonin, experts say there isn’t enough research available to conclude that long-term use of melatonin is safe.\n\n### Can you build a tolerance to melatonin?\nMelatonin does not typically lead to physical dependence or tolerance in the way that some sleep medications do. However, some people may feel that melatonin becomes less effective over time, especially if taken in high doses or used nightly without addressing the root cause of sleep issues. This reduced effectiveness may be due to changes in your body’s natural melatonin production or sleep patterns rather than true tolerance.\n\nIf melatonin seems to stop working, it’s a good idea to take a break or consult a healthcare provider to explore other sleep strategies.\n\n### What shouldn’t you take with melatonin?\nYou should avoid taking melatonin with alcohol, caffeine, and certain prescription medications. Alcohol and caffeine can affect your sleep-wake cycle and impact natural melatonin production. Birth control may increase natural melatonin production, too, so taking a melatonin supplement alongside birth control could result in more melatonin than your body can process  .\n\nCertain anxiety and depression medications can have interactions with melatonin, including some SSRIs and sedatives. Melatonin can boost your immune system, so if you’re taking immunosuppressants, you may want to avoid melatonin. Melatonin can also interfere with prescription drugs that are used to treat sleep disorders.\n\nConsult your physician before taking melatonin, especially if you take other prescription medications.\n\n![](https:\/\/www.sleepfoundation.org\/wp-content\/themes\/onecaremedia-child\/assets\/images\/sf-question-bubble.svg)\n\n### Still have questions? Ask our community\\!\nJoin our [Sleep Care Community](https:\/\/community.sleepfoundation.org\/) — a trusted hub of sleep health professionals, product specialists, and people just like you. Whether you need expert sleep advice for your insomnia or you’re searching for the perfect mattress, we’ve got you covered. Get personalized guidance from the experts who know sleep best.\n\n![Jay Vera Summer](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2025\/01\/jay-vera-summer-2025-profile-photo-150x150.jpg)\n\nWritten By\n\n### Jay Vera Summer,  Contributing Writer\n\nJay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy.\n\n![Dustin Cotliar, MD, MPH](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/10\/profiledustin-cotliar-150x150.jpeg)\n\nMedically Reviewed by\n\n### Dustin Cotliar, MD, MPH,  Physician\n\nDustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine.\n\n[Learn more about our Editorial Team](https:\/\/www.sleepfoundation.org\/about-us\/who-we-are#team)\n\n## References 11 Sources\n1. Besag, F., Vasey, M. J., Lao, K., & Wong, I. (2019). Adverse events associated with melatonin for the treatment of primary or secondary sleep disorders: A systematic review. CNS Drugs, 33(12), 1167–1186.\n   <https:\/\/pubmed.ncbi.nlm.nih.gov\/31722088\/>\n2. Freeman, D., Lind, J., Weidle, D., et al. Centers for Disease Control and Prevention. (2024, March 7). Emergency Department Visits for Unsupervised Pediatric Melatonin Ingestion – United States, 2019-2022. Morbidity and Mortality Weekly Report. Centers for Disease Control and Prevention.\n   <https:\/\/www.cdc.gov\/mmwr\/volumes\/73\/wr\/pdfs\/mm7309a5-H.pdf>\n3. Neubauer, D. (2024, March). Pharmacotherapy for insomnia in adults. In R. Benca, J. Elmore, & A. Eichler (Ed.). UpToDate.\n   <https:\/\/www.uptodate.com\/contents\/pharmacotherapy-for-insomnia-in-adults>\n4. Shenoy P, Etcheverry A, Ia J, Witmans M, Tablizo MA. Melatonin Use in Pediatrics: A Clinical Review on Indications, Multisystem Effects, and Toxicity. Children. 2024; 11(3):323.\n   <https:\/\/www.mdpi.com\/2227-9067\/11\/3\/323>\n5. Cohen, P. A., Avula, B., Wang, Y. H., Katragunta, K., & Khan, I. (2023). Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US. JAMA, 329(16), 1401–1402.\n   <https:\/\/pubmed.ncbi.nlm.nih.gov\/37097362\/>\n6. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2022, August 8). Melatonin. StatPearls.\n   <https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK534823\/>\n7. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2024, February 9). Melatonin. StatPearls.\n   <https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK534823\/>\n8. Tuft, C., Matar, E., Menczel Schrire, Z., Grunstein, R. R., Yee, B. J., & Hoyos, C. M. (2023). Current Insights into the Risks of Using Melatonin as a Treatment for Sleep Disorders in Older Adults. Clinical interventions in aging, 18, 49–59.\n   <https:\/\/pubmed.ncbi.nlm.nih.gov\/36660543\/>\n9. Shenoy, P., Etcheverry, A., Ia, J., WItmans, M., & Tablizo, M. (2024, March 9). Melatonin Use in Pediatrics: A Clinical Review of Indications, Multisystem Effects, and Toxicity. Children, 11, 323.\n   <https:\/\/www.mdpi.com\/2227-9067\/11\/3\/323>\n10. Besag, F. M. C., Vasey, M. J., Lao, K. S. J., & Wong, I. C. K. (2019). Adverse Events Associated with Melatonin for the Treatment of Primary or Secondary Sleep Disorders: A Systematic Review. CNS drugs, 33(12), 1167–1186.\n    <https:\/\/pubmed.ncbi.nlm.nih.gov\/31722088\/>\n11. Webley, G. E., & Leidenberger, F. (1986). The circadian pattern of melatonin and its positive relationship with progesterone in women. The Journal of Clinical Endocrinology and Metabolism, 63(2), 323–328.\n    <https:\/\/pubmed.ncbi.nlm.nih.gov\/3722324\/>\n\nLearn More About Melatonin\n\n[![Melatonin Dosage for Kids](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/06\/Melatonin-Dosage-for-kids-2-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-for-kids)\n\n[![Amazon.com photo of the Sleep Is the Foundation Melatonin Gummies](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/10\/Sleep-Is-the-Foundation-Melatonin-Gummies-300x206.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/best-melatonin-gummies)\n\n[![Amazon.com photo of the Sleep Is the Foundation Melatonin Capsules](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/04\/Sleep-Is-the-Foundation-Melatonin-Capsules-300x178.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/best-melatonin-supplements)\n\n[![Woman Taking Melatonin](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/woman-with-melatonin-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-dosage-how-much-should-you-take)\n\n[![birth control pills and hands](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/06\/Does-Melatonin-Affect-Birth-Control-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/effects-on-birth-control)\n\n[![Pregnant woman holding belly](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/06\/Can-You-Take-Melatonin-While-Pregnant-300x192.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/pregnancy)\n\n[![Sleeping child holding teddy bear](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/07\/Should-You-Give-Melatonin-To-Children-300x187.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-for-children)\n\n[![Woman taking melatonin before bed](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/07\/Does-Melatonin-Expire-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/does-melatonin-expire)\n\n[![Woman placing Melatonin Patch on her arm](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/08\/Do-Melatonin-Sleep-Patches-Help-You-Fall-Asleep-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-sleep-patch)\n\n[![stock photo of a young man with a headache](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/06\/man-with-headache-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-side-effects)\n\n[![Melatonin for Dogs: Dosage, Benefits, and Safety](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/10\/melatonin-dogs-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-for-dogs)\n\n[![How Long Does Melatonin Take to Work?](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/10\/how-long-does-melatonin-take-to-work-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/how-long-does-melatonin-take-to-work)\n\n[![Melatonin and COVID](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/10\/pills-300x200.jpeg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-and-covid-19)\n\n[![A person pours a pill into their hand](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2022\/09\/man-taking-melatonin-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/how-long-does-melatonin-last)\n\n[![Woman lying in bed with her face covered in distress](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2023\/02\/melatonin-nightmares-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/can-melatonin-cause-nightmares)\n\n[![Man taking pills](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/Melatonin-Overdose-How-Much-Melatonin-Should-You-Take-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-benefits)\n\n[![A young woman taking medication at home](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2021\/05\/melatonin-overdose-300x200.jpg)](https:\/\/www.sleepfoundation.org\/melatonin\/melatonin-and-alcohol)\n\n[![A woman places a pill in her mouth while holding a glass of water](https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2009\/04\/Melatonin-1-300x179.jpg)](https:\/\/www.sleepfoundation.org\/melatonin)","meta_canonical":null}

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Boilerpipe Text	Skip to content Key Takeaways There’s no standard dosage of melatonin, but most adults should take between 1 to 5 milligrams and not exceed 10 milligrams a day. You should talk to a doctor before giving melatonin to children and not exceed doses of 3 milligrams for kids 5 and up. Kids under 5 should not take melatonin. In most cases, you can treat melatonin overdoses with time and rest. Very few require hospitalization. Life-threatenting overdoses are rare, but overdoses can cause noticeable side effects, including difficulty breathing, seizures, or a loss of consciousness. Melatonin is one of the most popular sleep aids . In fact, in a recent Sleep Foundation survey, it topped the list of sleep aids, with 58% of respondents reporting they had previously used melatonin. And though it’s been found generally safe with few serious side effects , there’s still a risk of melatonin overdose if you take too much. In recent years, poison centers have received five times the number of calls about melatonin overdose as they did 20 years ago. Emergency rooms have seen four times as many children and infants coming in after unintentional melatonin ingestion. It’s important to be aware of the safety risks posed by taking too much melatonin. Below, we take a closer look at melatonin dosing , potential symptoms of a melatonin overdose, and when to contact a doctor. Recommended melatonin dosage varies depending on a person’s age. Experts generally recommend adults take between 1 and 5 milligrams of melatonin to promote better sleep . Most adults shouldn’t need to take more than 5 milligrams of melatonin a day, and researchers have found that more than 10 milligrams of melatonin a day is too much . It’s important to talk to your doctor before beginning melatonin supplementation . Start with a low dose of melatonin to see how your body reacts, then gradually increase the dosage if needed. Small doses, such as 1 milligram or less, may be just as effective as higher doses. Starting with a low dose is especially important, because some melatonin supplements contain a higher dose than what’s listed on the label. In the U.S., dietary supplements including melatonin aren’t tested by the Food and Drug Administration (FDA) for safety or accuracy prior to being sold, so the listed amount may be slightly or significantly different from what’s actually present in the supplement. Some supplements may also include more than just melatonin. It’s also important to note that different formulations of melatonin, such as pill, powder, gummy, or liquid, may be absorbed differently by the body. Our survey results indicate that melatonin users are at least three times more likely to use capsules, tablets, or gummies than they are any other type of formulation. There also isn’t any information on how melatonin affects the body long-term. Experts recommend melatonin use for up to 3 months at a time. “Most people end up taking more melatonin than they actually need because of mislabeling. Many products contain higher doses than what’s actually listed.” It’s unlikely that you’ll have a life-threatening reaction to a melatonin overdose. Generally, melatonin isn’t bad for you . Melatonin is a hormone that your body naturally produces, so if you take too much your body just has an excess supply that will take longer than normal for it to process. Researchers haven’t found a lethal dose of melatonin . However, if you take too much, you may experience unpleasant—though non-serious—side effects. Symptoms of a Melatonin Overdose A life-threatening melatonin overdose is rare, especially in adults. But melatonin supplements with higher doses can cause adverse reactions and side effects , including: Nightmares Headaches Irritability Stomach pain Nausea Daytime tiredness Dizziness Short-term depression symptoms In our survey, the most commonly reported symptoms included daytime drowsiness (24%), vivid dreams or nightmares (17%), headache (15%), and difficulty waking up (15%). Half said they’d never experienced any of the listed side effects. It’s important to note, though, that these are known side effects and not necessarily indications of an overdose. Drug overdose symptoms that require immediate emergency medical attention include difficulty breathing, seizures, or a loss of consciousness. What to Do if You’re Experiencing Melatonin Overdose Symptoms If you suspect you or someone else is experiencing a melatonin overdose, contact a poison control center. You can talk to a poison expert at PoisonHelp.org or by calling (800) 222-1222 in the U.S. If you or someone else is experiencing severe symptoms, such as difficulty breathing, seizures, or a loss of consciousness, immediately call 9-1-1 or go to the emergency room. Ingesting melatonin may be particularly dangerous if you’ve consumed other medications or alcohol. Experts don’t recommend melatonin for children under 5, and they caution against doses above 3 milligrams for kids 5 and up. Even though melatonin for kids is available without a prescription in the U.S., you shouldn’t give melatonin to a child without discussing it with their doctor first. “Some melatonin supplements look and taste similar to candy. This makes it important for parents to store all supplements and medications in child-safe bottles and outside the reach of children.” Dustin Cotliar, MD, MPH Physician Children can experience side effects of melatonin overdose, but serious symptoms are rare and experts haven’t found a lethal melatonin dose for adults or children. Kids produce more melatonin than adults do naturally, so it’s important to keep dosage low. If children ingest more melatonin than their body can process, they may experience the following side effects. Nightmares Headaches Irritability Stomach pain Nausea Daytime tiredness Dizziness Bedwetting Melatonin supplements are sometimes used to treat children who have insomnia , other sleep disorders, or neurodevelopmental disorders, like autism, attention-deficit hyperactivity disorder (ADHD), or epilepsy. Lower doses are thought to be safer and more effective than higher doses. There’s no specific antidote for a melatonin overdose, and treatment typically focuses on managing symptoms. In most cases, mild melatonin overdoses can be treated at home by stopping use and allowing the supplement to naturally clear from the body. Don’t attempt to induce vomiting if you suspect a melatonin overdose. Instead, wait in a safe place for symptoms to pass. Common symptoms, such as drowsiness, headache, nausea, or dizziness, often resolve within a few hours. If symptoms are more severe or prolonged, medical attention may be necessary. A healthcare provider may recommend supportive care, such as hydration, rest, or monitoring heart rate and blood pressure if irregularities are present. In rare cases, especially when melatonin is taken in very high doses or combined with other medications, evaluation at a hospital or poison control center may be needed to ensure safety. If you experience difficulty breathing, loss of consciousness, or seizures, call 9-1-1 or go to the emergency room. You can also talk to an expert at PoisonHelp.org . Say Goodbye to Insomnia Sign up to receive emails about how to improve your sleep, as well as our comprehensive Better Sleep Guidebook. Although melatonin has largely been found to be safe, talk to your doctor before beginning to take it or any dietary supplement. People often assume dietary supplements are safe, but they aren’t tested by the FDA for quality or accuracy, like prescription drugs are. Survey responses show that nearly 34% of people don’t seek out third-party researchers before buying a sleep aid. Supplements may also cause side effects or interact with prescription drugs. Melatonin effects on pregnant and post-partum people haven’t been significantly studied. Speak with a doctor if you’re pregnant or nursing. If you’re taking melatonin and experience serious side effects or are concerned about overdose, call poison control or seek emergency medical attention immediately. Frequently Asked Questions How long do melatonin side effects last? Melatonin side effects—such as grogginess, dizziness, headache, or nausea—usually resolve within a few hours as the supplement leaves your system. The exact duration can depend on the dose taken, your metabolism, and whether melatonin was combined with other substances like alcohol or sedating medications. In most cases, side effects are mild and temporary. If symptoms persist longer than a few hours or are severe, it’s best to contact a healthcare professional. What are the long-term effects of taking melatonin? In the short-term, you can take melatonin every night , but long-term use hasn’t been widely studied. Most studies have only followed people using melatonin for about a month. Although longer-term studies haven’t found serious adverse events from using melatonin, experts say there isn’t enough research available to conclude that long-term use of melatonin is safe. Can you build a tolerance to melatonin? Melatonin does not typically lead to physical dependence or tolerance in the way that some sleep medications do. However, some people may feel that melatonin becomes less effective over time, especially if taken in high doses or used nightly without addressing the root cause of sleep issues. This reduced effectiveness may be due to changes in your body’s natural melatonin production or sleep patterns rather than true tolerance. If melatonin seems to stop working, it’s a good idea to take a break or consult a healthcare provider to explore other sleep strategies. What shouldn’t you take with melatonin? You should avoid taking melatonin with alcohol, caffeine, and certain prescription medications. Alcohol and caffeine can affect your sleep-wake cycle and impact natural melatonin production. Birth control may increase natural melatonin production, too, so taking a melatonin supplement alongside birth control could result in more melatonin than your body can process . Certain anxiety and depression medications can have interactions with melatonin, including some SSRIs and sedatives. Melatonin can boost your immune system, so if you’re taking immunosuppressants, you may want to avoid melatonin. Melatonin can also interfere with prescription drugs that are used to treat sleep disorders. Consult your physician before taking melatonin, especially if you take other prescription medications. Still have questions? Ask our community! Join our Sleep Care Community — a trusted hub of sleep health professionals, product specialists, and people just like you. Whether you need expert sleep advice for your insomnia or you’re searching for the perfect mattress, we’ve got you covered. Get personalized guidance from the experts who know sleep best. Written By Jay Vera Summer, Contributing Writer Jay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy. Medically Reviewed by Dustin Cotliar, MD, MPH, Physician Dustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine. Learn more about our Editorial Team References 11 Sources Besag, F., Vasey, M. J., Lao, K., & Wong, I. (2019). Adverse events associated with melatonin for the treatment of primary or secondary sleep disorders: A systematic review. CNS Drugs, 33(12), 1167–1186. https://pubmed.ncbi.nlm.nih.gov/31722088/ Freeman, D., Lind, J., Weidle, D., et al. Centers for Disease Control and Prevention. (2024, March 7). Emergency Department Visits for Unsupervised Pediatric Melatonin Ingestion – United States, 2019-2022. Morbidity and Mortality Weekly Report. Centers for Disease Control and Prevention. https://www.cdc.gov/mmwr/volumes/73/wr/pdfs/mm7309a5-H.pdf Neubauer, D. (2024, March). Pharmacotherapy for insomnia in adults. In R. Benca, J. Elmore, & A. Eichler (Ed.). UpToDate. https://www.uptodate.com/contents/pharmacotherapy-for-insomnia-in-adults Shenoy P, Etcheverry A, Ia J, Witmans M, Tablizo MA. Melatonin Use in Pediatrics: A Clinical Review on Indications, Multisystem Effects, and Toxicity. Children. 2024; 11(3):323. https://www.mdpi.com/2227-9067/11/3/323 Cohen, P. A., Avula, B., Wang, Y. H., Katragunta, K., & Khan, I. (2023). Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US. JAMA, 329(16), 1401–1402. https://pubmed.ncbi.nlm.nih.gov/37097362/ Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2022, August 8). Melatonin. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK534823/ Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2024, February 9). Melatonin. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK534823/ Tuft, C., Matar, E., Menczel Schrire, Z., Grunstein, R. R., Yee, B. J., & Hoyos, C. M. (2023). Current Insights into the Risks of Using Melatonin as a Treatment for Sleep Disorders in Older Adults. Clinical interventions in aging, 18, 49–59. https://pubmed.ncbi.nlm.nih.gov/36660543/ Shenoy, P., Etcheverry, A., Ia, J., WItmans, M., & Tablizo, M. (2024, March 9). Melatonin Use in Pediatrics: A Clinical Review of Indications, Multisystem Effects, and Toxicity. Children, 11, 323. https://www.mdpi.com/2227-9067/11/3/323 Besag, F. M. C., Vasey, M. J., Lao, K. S. J., & Wong, I. C. K. (2019). Adverse Events Associated with Melatonin for the Treatment of Primary or Secondary Sleep Disorders: A Systematic Review. CNS drugs, 33(12), 1167–1186. https://pubmed.ncbi.nlm.nih.gov/31722088/ Webley, G. E., & Leidenberger, F. (1986). The circadian pattern of melatonin and its positive relationship with progesterone in women. The Journal of Clinical Endocrinology and Metabolism, 63(2), 323–328. https://pubmed.ncbi.nlm.nih.gov/3722324/ Learn More About Melatonin
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Products or services may be offered by an affiliated entity. [Learn more.](https://www.sleepfoundation.org/about-us/advertising-disclosure) [/](https://www.sleepfoundation.org/) [Melatonin and Sleep](https://www.sleepfoundation.org/melatonin) ![Main Intro Section Image](https://www.sleepfoundation.org/wp-content/uploads/2025/07/Header-Image-8-1.svg) # Can You Overdose on Melatonin? Updated August 29, 2025 Written by Jay Vera Summer ![Jay Vera Summer](https://www.sleepfoundation.org/wp-content/uploads/2025/01/jay-vera-summer-2025-profile-photo-150x150.jpg) Jay Vera Summer Contributing Writer Jay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy. [Read Full Bio](https://www.sleepfoundation.org/about-us/who-we-are#jay_vera_summer) Want to read more about all our experts in the field? [Learn About The Editorial Team](https://www.sleepfoundation.org/about-us) \\| Medically Reviewed by Dustin Cotliar, MD, MPH ![Dustin Cotliar, MD, MPH](https://www.sleepfoundation.org/wp-content/uploads/2023/10/profiledustin-cotliar-150x150.jpeg) Dustin Cotliar, MD, MPH Physician Dustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine. [Read Full Bio](https://www.sleepfoundation.org/about-us/who-we-are#dustin_cotliar,_md,_mph) Want to read more about all our experts in the field? [Learn About The Editorial Team](https://www.sleepfoundation.org/about-us) - [How Much Melatonin Is Too Much?](https://www.sleepfoundation.org/melatonin/melatonin-overdose#how-much-melatonin) - [What Happens if You Take Too Much Melatonin?](https://www.sleepfoundation.org/melatonin/melatonin-overdose#what-happen-if-you-take-too-much) - [Can Children Overdose on Melatonin?](https://www.sleepfoundation.org/melatonin/melatonin-overdose#children) - [What Is the Treatment for a Melatonin Overdose?](https://www.sleepfoundation.org/melatonin/melatonin-overdose#treatment) - [When Should I Talk With a Doctor?](https://www.sleepfoundation.org/melatonin/melatonin-overdose#when-should-i-talk-with-a-doctor) Key Takeaways - There’s no standard dosage of melatonin, but most adults should take between 1 to 5 milligrams and not exceed 10 milligrams a day. - You should talk to a doctor before giving melatonin to children and not exceed doses of 3 milligrams for kids 5 and up. Kids under 5 should not take melatonin. - In most cases, you can treat melatonin overdoses with time and rest. Very few require hospitalization. - Life-threatenting overdoses are rare, but overdoses can cause noticeable side effects, including difficulty breathing, seizures, or a loss of consciousness. Melatonin is one of the most popular [sleep aids](https://www.sleepfoundation.org/sleep-aids). In fact, in a recent Sleep Foundation survey, it topped the list of sleep aids, with 58% of respondents reporting they had previously used melatonin. And though it’s been found generally safe with few serious side effects [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) CNS Drugs[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-78439) , there’s still a risk of melatonin overdose if you take too much. In recent years, poison centers have received five times the number of calls about melatonin overdose [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) Centers for Disease Control and PreventionCDC is the nation’s leading science-based, data-driven, service organization that protects the public’s health.[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-255043) as they did 20 years ago. Emergency rooms have seen four times as many children and infants coming in after unintentional melatonin ingestion. It’s important to be aware of the safety risks posed by taking too much melatonin. Below, we take a closer look at [melatonin dosing](https://www.sleepfoundation.org/melatonin/melatonin-dosage-how-much-should-you-take), potential symptoms of a melatonin overdose, and when to contact a doctor. [![](https://www.sleepfoundation.org/wp-content/uploads/2009/04/MomentousEliteSleep-2-768x768.webp)Our Top Melatonin Supplement We’ve tried a lot of melatonin supplements and we’ve even made our own. The ones from Momentous are our favorite. From Our Partners at SleepDoctor.com. Shop at Sleep Doctor](https://sleepdoctor.com/products/elite-sleep) ## How Much Melatonin Is Too Much? Recommended melatonin dosage varies depending on a person’s age. Experts generally recommend adults take between 1 and 5 milligrams of melatonin to [promote better sleep](https://www.sleepfoundation.org/melatonin/melatonin-benefits). [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) UpToDateMore than 2 million healthcare providers around the world choose UpToDate to help make appropriate care decisions and drive better health outcomes. UpToDate delivers evidence-based clinical decision support that is clear, actionable, and rich with real-world insights.[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-255045) Most adults shouldn’t need to take more than 5 milligrams of melatonin a day, and researchers have found that more than 10 milligrams of melatonin a day is too much [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) Children[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-284167) . It’s important to talk to your doctor before beginning [melatonin supplementation](https://www.sleepfoundation.org/melatonin). Start with a low dose of melatonin to see how your body reacts, then gradually increase the dosage if needed. Small doses, such as 1 milligram or less, may be just as effective as higher doses. Starting with a low dose is especially important, because some melatonin supplements contain a higher dose [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) JAMAJAMA, published continuously since 1883, is an international peer-reviewed general medical journal.[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-253053) than what’s listed on the label. In the U.S., dietary supplements including melatonin aren’t tested by the Food and Drug Administration (FDA) for safety or accuracy prior to being sold, so the listed amount may be slightly or significantly different from what’s actually present in the supplement. Some supplements may also include more than just melatonin. It’s also important to note that different formulations of melatonin, such as pill, powder, gummy, or liquid, may be absorbed differently [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) StatPearls[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-255049) by the body. Our survey results indicate that melatonin users are at least three times more likely to use capsules, tablets, or gummies than they are any other type of formulation. There also isn’t any information on how melatonin affects the body long-term. Experts recommend melatonin use for up to 3 months at a time. “Most people end up taking more melatonin than they actually need because of mislabeling. Many products contain higher doses than what’s actually listed.” ![Dustin Cotliar, MD, MPH](https://www.sleepfoundation.org/wp-content/uploads/2023/10/profiledustin-cotliar-150x150.jpeg) Dustin Cotliar, MD, MPH Physician ## What Happens if You Take Too Much Melatonin? It’s unlikely that you’ll have a life-threatening reaction to a melatonin overdose. Generally, [melatonin isn’t bad for you](https://www.sleepfoundation.org/melatonin/is-melatonin-bad-for-you). Melatonin is a hormone that your body naturally produces, so if you take too much your body just has an excess supply that will take longer than normal for it to process. Researchers haven’t found a lethal dose of melatonin [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) StatPearls[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-271560) . However, if you take too much, you may experience unpleasant—though non-serious—side effects. ### Symptoms of a Melatonin Overdose A life-threatening melatonin overdose is rare, especially in adults. [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) Clinical Interventions in Aging[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-255047) But melatonin supplements with higher doses can cause adverse reactions and [side effects](https://www.sleepfoundation.org/melatonin/melatonin-side-effects), including: - Nightmares - Headaches - Irritability - Stomach pain - Nausea - Daytime tiredness - Dizziness - Short-term depression symptoms In our survey, the most commonly reported symptoms included daytime drowsiness (24%), vivid dreams or nightmares (17%), headache (15%), and difficulty waking up (15%). Half said they’d never experienced any of the listed side effects. It’s important to note, though, that these are known side effects and not necessarily indications of an overdose. Drug overdose symptoms that require immediate emergency medical attention include difficulty breathing, seizures, or a loss of consciousness. ### What to Do if You’re Experiencing Melatonin Overdose Symptoms If you suspect you or someone else is experiencing a melatonin overdose, contact a poison control center. You can talk to a poison expert at[PoisonHelp.org](https://www.poisonhelp.org/) or by calling (800) 222-1222 in the U.S. If you or someone else is experiencing severe symptoms, such as difficulty breathing, seizures, or a loss of consciousness, immediately call 9-1-1 or go to the emergency room. Ingesting melatonin may be particularly dangerous if you’ve consumed other medications or alcohol. ## Can Children Overdose on Melatonin? Experts don’t recommend melatonin for children under 5, and they caution against doses above 3 milligrams for kids 5 and up. Even though [melatonin for kids](https://www.sleepfoundation.org/melatonin/melatonin-for-children) is available without a prescription in the U.S., you shouldn’t give melatonin to a child without discussing it with their doctor first. “Some melatonin supplements look and taste similar to candy. This makes it important for parents to store all supplements and medications in child-safe bottles and outside the reach of children.” ![Dustin Cotliar, MD, MPH](https://www.sleepfoundation.org/wp-content/uploads/2023/10/profiledustin-cotliar-150x150.jpeg) Dustin Cotliar, MD, MPH Physician Children can experience side effects of melatonin overdose, but serious symptoms are rare and experts haven’t found a lethal melatonin dose for adults or children. Kids produce more melatonin than adults do naturally, so it’s important to keep dosage low. If children ingest more melatonin than their body can process, they may experience the following side effects. - Nightmares - Headaches - Irritability - Stomach pain - Nausea - Daytime tiredness - Dizziness - Bedwetting Melatonin supplements are sometimes used to treat children who have [insomnia](https://www.sleepfoundation.org/insomnia), other sleep disorders, or neurodevelopmental disorders, like autism, attention-deficit hyperactivity disorder (ADHD), or epilepsy. [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) Children[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-255053) Lower doses are thought to be safer and more effective than higher doses. ![](https://www.sleepfoundation.org/wp-content/uploads/2021/05/SF-23-082_Melatonin_Graphic_Updated-1-1024x701.png) ## What Is the Treatment for a Melatonin Overdose? There’s no specific antidote for a melatonin overdose, and treatment typically focuses on managing symptoms. In most cases, mild melatonin overdoses can be treated at home by stopping use and allowing the supplement to naturally clear from the body. Don’t attempt to induce vomiting if you suspect a melatonin overdose. Instead, wait in a safe place for symptoms to pass. Common symptoms, such as drowsiness, headache, nausea, or dizziness, often resolve within a few hours. If symptoms are more severe or prolonged, medical attention may be necessary. A healthcare provider may recommend supportive care, such as hydration, rest, or monitoring heart rate and blood pressure if irregularities are present. In rare cases, especially when melatonin is taken in very high doses or combined with other medications, evaluation at a hospital or poison control center may be needed to ensure safety. If you experience difficulty breathing, loss of consciousness, or seizures, call 9-1-1 or go to the emergency room. You can also talk to an expert at [PoisonHelp.org](https://www.poisonhelp.org/). ## Say Goodbye to Insomnia Sign up to receive emails about how to improve your sleep, as well as our comprehensive Better Sleep Guidebook. ![](https://www.sleepfoundation.org/wp-content/uploads/2018/10/Email-Capture-Icon.svg) ## When Should I Talk With a Doctor? Although melatonin has largely been found to be safe, talk to your doctor before beginning to take it or any dietary supplement. People often assume dietary supplements are safe, but they aren’t tested by the FDA for quality or accuracy, like prescription drugs are. Survey responses show that nearly 34% of people don’t seek out third-party researchers before buying a sleep aid. Supplements may also cause side effects or interact with prescription drugs. Melatonin effects on pregnant and post-partum people haven’t been significantly studied. Speak with a doctor if you’re pregnant or nursing. If you’re taking melatonin and experience serious side effects or are concerned about overdose, call poison control or seek emergency medical attention immediately. ## Frequently Asked Questions ### How long do melatonin side effects last? Melatonin side effects—such as grogginess, dizziness, headache, or nausea—usually resolve within a few hours as the supplement leaves your system. The exact duration can depend on the dose taken, your metabolism, and whether melatonin was combined with other substances like alcohol or sedating medications. In most cases, side effects are mild and temporary. If symptoms persist longer than a few hours or are severe, it’s best to contact a healthcare professional. ### What are the long-term effects of taking melatonin? In the short-term, you can [take melatonin every night](https://www.sleepfoundation.org/melatonin/is-it-safe-to-take-melatonin-every-night), but long-term use hasn’t been widely studied. Most studies have only followed people using melatonin for about a month. Although longer-term studies haven’t found serious adverse events from using melatonin, experts say there isn’t enough research available to conclude that long-term use [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) CNS Drugs[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-255051) of melatonin is safe. ### Can you build a tolerance to melatonin? Melatonin does not typically lead to physical dependence or tolerance in the way that some sleep medications do. However, some people may feel that melatonin becomes less effective over time, especially if taken in high doses or used nightly without addressing the root cause of sleep issues. This reduced effectiveness may be due to changes in your body’s natural melatonin production or sleep patterns rather than true tolerance. If melatonin seems to stop working, it’s a good idea to take a break or consult a healthcare provider to explore other sleep strategies. ### What shouldn’t you take with melatonin? You should avoid taking melatonin with alcohol, caffeine, and certain prescription medications. Alcohol and caffeine can affect your sleep-wake cycle and impact natural melatonin production. Birth control may increase natural melatonin production, too, so taking a melatonin supplement alongside birth control could result in more melatonin than your body can process [Trusted Source](https://www.sleepfoundation.org/about-us/editorial-policy) The Journal of Clinical Endocrinology and Metabolism[View Source](https://www.sleepfoundation.org/melatonin/melatonin-overdose#references-82188) . Certain anxiety and depression medications can have interactions with melatonin, including some SSRIs and sedatives. Melatonin can boost your immune system, so if you’re taking immunosuppressants, you may want to avoid melatonin. Melatonin can also interfere with prescription drugs that are used to treat sleep disorders. Consult your physician before taking melatonin, especially if you take other prescription medications. ![](https://www.sleepfoundation.org/wp-content/themes/onecaremedia-child/assets/images/sf-question-bubble.svg) ### Still have questions? Ask our community\! Join our [Sleep Care Community](https://community.sleepfoundation.org/) — a trusted hub of sleep health professionals, product specialists, and people just like you. Whether you need expert sleep advice for your insomnia or you’re searching for the perfect mattress, we’ve got you covered. Get personalized guidance from the experts who know sleep best. [About Our Editorial Team](https://www.sleepfoundation.org/about-us) ![Jay Vera Summer](https://www.sleepfoundation.org/wp-content/uploads/2025/01/jay-vera-summer-2025-profile-photo-150x150.jpg) Written By ### Jay Vera Summer, Contributing Writer Jay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy. ![Dustin Cotliar, MD, MPH](https://www.sleepfoundation.org/wp-content/uploads/2023/10/profiledustin-cotliar-150x150.jpeg) Medically Reviewed by ### Dustin Cotliar, MD, MPH, Physician Dustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine. [Learn more about our Editorial Team](https://www.sleepfoundation.org/about-us/who-we-are#team) ## References 11 Sources 1. Besag, F., Vasey, M. J., Lao, K., & Wong, I. (2019). Adverse events associated with melatonin for the treatment of primary or secondary sleep disorders: A systematic review. CNS Drugs, 33(12), 1167–1186. <https://pubmed.ncbi.nlm.nih.gov/31722088/> 2. Freeman, D., Lind, J., Weidle, D., et al. Centers for Disease Control and Prevention. (2024, March 7). Emergency Department Visits for Unsupervised Pediatric Melatonin Ingestion – United States, 2019-2022. Morbidity and Mortality Weekly Report. Centers for Disease Control and Prevention. <https://www.cdc.gov/mmwr/volumes/73/wr/pdfs/mm7309a5-H.pdf> 3. Neubauer, D. (2024, March). Pharmacotherapy for insomnia in adults. In R. Benca, J. Elmore, & A. Eichler (Ed.). UpToDate. <https://www.uptodate.com/contents/pharmacotherapy-for-insomnia-in-adults> 4. Shenoy P, Etcheverry A, Ia J, Witmans M, Tablizo MA. Melatonin Use in Pediatrics: A Clinical Review on Indications, Multisystem Effects, and Toxicity. Children. 2024; 11(3):323. <https://www.mdpi.com/2227-9067/11/3/323> 5. Cohen, P. A., Avula, B., Wang, Y. H., Katragunta, K., & Khan, I. (2023). Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US. JAMA, 329(16), 1401–1402. <https://pubmed.ncbi.nlm.nih.gov/37097362/> 6. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2022, August 8). Melatonin. StatPearls. <https://www.ncbi.nlm.nih.gov/books/NBK534823/> 7. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2024, February 9). Melatonin. StatPearls. <https://www.ncbi.nlm.nih.gov/books/NBK534823/> 8. Tuft, C., Matar, E., Menczel Schrire, Z., Grunstein, R. R., Yee, B. J., & Hoyos, C. M. (2023). Current Insights into the Risks of Using Melatonin as a Treatment for Sleep Disorders in Older Adults. Clinical interventions in aging, 18, 49–59. <https://pubmed.ncbi.nlm.nih.gov/36660543/> 9. Shenoy, P., Etcheverry, A., Ia, J., WItmans, M., & Tablizo, M. (2024, March 9). Melatonin Use in Pediatrics: A Clinical Review of Indications, Multisystem Effects, and Toxicity. Children, 11, 323. <https://www.mdpi.com/2227-9067/11/3/323> 10. Besag, F. M. C., Vasey, M. J., Lao, K. S. J., & Wong, I. C. K. (2019). Adverse Events Associated with Melatonin for the Treatment of Primary or Secondary Sleep Disorders: A Systematic Review. CNS drugs, 33(12), 1167–1186. <https://pubmed.ncbi.nlm.nih.gov/31722088/> 11. Webley, G. E., & Leidenberger, F. (1986). The circadian pattern of melatonin and its positive relationship with progesterone in women. The Journal of Clinical Endocrinology and Metabolism, 63(2), 323–328. <https://pubmed.ncbi.nlm.nih.gov/3722324/> ## Learn More About Melatonin [![Melatonin Dosage for Kids](https://www.sleepfoundation.org/wp-content/uploads/2022/06/Melatonin-Dosage-for-kids-2-300x200.jpg)](https://www.sleepfoundation.org/melatonin/melatonin-dosage-for-kids) [Melatonin Dosage for Kids](https://www.sleepfoundation.org/melatonin/melatonin-dosage-for-kids) By Jay Vera Summer January 9, 2026 * [![Amazon.com photo of the Sleep Is the Foundation Melatonin Gummies](https://www.sleepfoundation.org/wp-content/uploads/2021/10/Sleep-Is-the-Foundation-Melatonin-Gummies-300x206.jpg)](https://www.sleepfoundation.org/melatonin/best-melatonin-gummies) [Best Melatonin Gummies of 2026](https://www.sleepfoundation.org/melatonin/best-melatonin-gummies) By Jeremy Klein October 22, 2025 * [![Amazon.com photo of the Sleep Is the Foundation Melatonin 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Environment [How to Create The Ideal Bedroom Environment](https://www.sleepfoundation.org/bedroom-environment) [Light and Sleep](https://www.sleepfoundation.org/bedroom-environment/light-and-sleep) [What Is White Noise?](https://www.sleepfoundation.org/noise-and-sleep/white-noise) [Technology In The Bedroom](https://www.sleepfoundation.org/bedroom-environment/technology-in-the-bedroom) [How Does Music Affect Sleep?](https://www.sleepfoundation.org/noise-and-sleep/music) ### Mattresses [Best Mattresses](https://www.sleepfoundation.org/best-mattress) [Best Mattresses for Side Sleepers](https://www.sleepfoundation.org/best-mattress/best-mattress-for-side-sleepers) [Best Mattresses for Back Pain](https://www.sleepfoundation.org/best-mattress/best-mattress-for-back-pain) [Cooling Mattresses](https://www.sleepfoundation.org/best-mattress/best-cooling-mattress) [Hybrid Mattresses](https://www.sleepfoundation.org/best-mattress/best-hybrid-mattress) [![Sleep Foundation 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Readable Markdown	[Skip to content](https://www.sleepfoundation.org/melatonin/melatonin-overdose#post_content) Key Takeaways - There’s no standard dosage of melatonin, but most adults should take between 1 to 5 milligrams and not exceed 10 milligrams a day. - You should talk to a doctor before giving melatonin to children and not exceed doses of 3 milligrams for kids 5 and up. Kids under 5 should not take melatonin. - In most cases, you can treat melatonin overdoses with time and rest. Very few require hospitalization. - Life-threatenting overdoses are rare, but overdoses can cause noticeable side effects, including difficulty breathing, seizures, or a loss of consciousness. Melatonin is one of the most popular [sleep aids](https://www.sleepfoundation.org/sleep-aids). In fact, in a recent Sleep Foundation survey, it topped the list of sleep aids, with 58% of respondents reporting they had previously used melatonin. And though it’s been found generally safe with few serious side effects , there’s still a risk of melatonin overdose if you take too much. In recent years, poison centers have received five times the number of calls about melatonin overdose as they did 20 years ago. Emergency rooms have seen four times as many children and infants coming in after unintentional melatonin ingestion. It’s important to be aware of the safety risks posed by taking too much melatonin. Below, we take a closer look at [melatonin dosing](https://www.sleepfoundation.org/melatonin/melatonin-dosage-how-much-should-you-take), potential symptoms of a melatonin overdose, and when to contact a doctor. Recommended melatonin dosage varies depending on a person’s age. Experts generally recommend adults take between 1 and 5 milligrams of melatonin to [promote better sleep](https://www.sleepfoundation.org/melatonin/melatonin-benefits). Most adults shouldn’t need to take more than 5 milligrams of melatonin a day, and researchers have found that more than 10 milligrams of melatonin a day is too much . It’s important to talk to your doctor before beginning [melatonin supplementation](https://www.sleepfoundation.org/melatonin). Start with a low dose of melatonin to see how your body reacts, then gradually increase the dosage if needed. Small doses, such as 1 milligram or less, may be just as effective as higher doses. Starting with a low dose is especially important, because some melatonin supplements contain a higher dose than what’s listed on the label. In the U.S., dietary supplements including melatonin aren’t tested by the Food and Drug Administration (FDA) for safety or accuracy prior to being sold, so the listed amount may be slightly or significantly different from what’s actually present in the supplement. Some supplements may also include more than just melatonin. It’s also important to note that different formulations of melatonin, such as pill, powder, gummy, or liquid, may be absorbed differently by the body. Our survey results indicate that melatonin users are at least three times more likely to use capsules, tablets, or gummies than they are any other type of formulation. There also isn’t any information on how melatonin affects the body long-term. Experts recommend melatonin use for up to 3 months at a time. “Most people end up taking more melatonin than they actually need because of mislabeling. Many products contain higher doses than what’s actually listed.” It’s unlikely that you’ll have a life-threatening reaction to a melatonin overdose. Generally, [melatonin isn’t bad for you](https://www.sleepfoundation.org/melatonin/is-melatonin-bad-for-you). Melatonin is a hormone that your body naturally produces, so if you take too much your body just has an excess supply that will take longer than normal for it to process. Researchers haven’t found a lethal dose of melatonin . However, if you take too much, you may experience unpleasant—though non-serious—side effects. ### Symptoms of a Melatonin Overdose A life-threatening melatonin overdose is rare, especially in adults. But melatonin supplements with higher doses can cause adverse reactions and [side effects](https://www.sleepfoundation.org/melatonin/melatonin-side-effects), including: - Nightmares - Headaches - Irritability - Stomach pain - Nausea - Daytime tiredness - Dizziness - Short-term depression symptoms In our survey, the most commonly reported symptoms included daytime drowsiness (24%), vivid dreams or nightmares (17%), headache (15%), and difficulty waking up (15%). Half said they’d never experienced any of the listed side effects. It’s important to note, though, that these are known side effects and not necessarily indications of an overdose. Drug overdose symptoms that require immediate emergency medical attention include difficulty breathing, seizures, or a loss of consciousness. ### What to Do if You’re Experiencing Melatonin Overdose Symptoms If you suspect you or someone else is experiencing a melatonin overdose, contact a poison control center. You can talk to a poison expert at[PoisonHelp.org](https://www.poisonhelp.org/) or by calling (800) 222-1222 in the U.S. If you or someone else is experiencing severe symptoms, such as difficulty breathing, seizures, or a loss of consciousness, immediately call 9-1-1 or go to the emergency room. Ingesting melatonin may be particularly dangerous if you’ve consumed other medications or alcohol. Experts don’t recommend melatonin for children under 5, and they caution against doses above 3 milligrams for kids 5 and up. Even though [melatonin for kids](https://www.sleepfoundation.org/melatonin/melatonin-for-children) is available without a prescription in the U.S., you shouldn’t give melatonin to a child without discussing it with their doctor first. “Some melatonin supplements look and taste similar to candy. This makes it important for parents to store all supplements and medications in child-safe bottles and outside the reach of children.” ![Dustin Cotliar, MD, MPH](https://www.sleepfoundation.org/wp-content/uploads/2023/10/profiledustin-cotliar-150x150.jpeg) Dustin Cotliar, MD, MPH Physician Children can experience side effects of melatonin overdose, but serious symptoms are rare and experts haven’t found a lethal melatonin dose for adults or children. Kids produce more melatonin than adults do naturally, so it’s important to keep dosage low. If children ingest more melatonin than their body can process, they may experience the following side effects. - Nightmares - Headaches - Irritability - Stomach pain - Nausea - Daytime tiredness - Dizziness - Bedwetting Melatonin supplements are sometimes used to treat children who have [insomnia](https://www.sleepfoundation.org/insomnia), other sleep disorders, or neurodevelopmental disorders, like autism, attention-deficit hyperactivity disorder (ADHD), or epilepsy. Lower doses are thought to be safer and more effective than higher doses. ![](https://www.sleepfoundation.org/wp-content/uploads/2021/05/SF-23-082_Melatonin_Graphic_Updated-1-1024x701.png) There’s no specific antidote for a melatonin overdose, and treatment typically focuses on managing symptoms. In most cases, mild melatonin overdoses can be treated at home by stopping use and allowing the supplement to naturally clear from the body. Don’t attempt to induce vomiting if you suspect a melatonin overdose. Instead, wait in a safe place for symptoms to pass. Common symptoms, such as drowsiness, headache, nausea, or dizziness, often resolve within a few hours. If symptoms are more severe or prolonged, medical attention may be necessary. A healthcare provider may recommend supportive care, such as hydration, rest, or monitoring heart rate and blood pressure if irregularities are present. In rare cases, especially when melatonin is taken in very high doses or combined with other medications, evaluation at a hospital or poison control center may be needed to ensure safety. If you experience difficulty breathing, loss of consciousness, or seizures, call 9-1-1 or go to the emergency room. You can also talk to an expert at [PoisonHelp.org](https://www.poisonhelp.org/). ## Say Goodbye to Insomnia Sign up to receive emails about how to improve your sleep, as well as our comprehensive Better Sleep Guidebook. ![](https://www.sleepfoundation.org/wp-content/uploads/2018/10/Email-Capture-Icon.svg) Although melatonin has largely been found to be safe, talk to your doctor before beginning to take it or any dietary supplement. People often assume dietary supplements are safe, but they aren’t tested by the FDA for quality or accuracy, like prescription drugs are. Survey responses show that nearly 34% of people don’t seek out third-party researchers before buying a sleep aid. Supplements may also cause side effects or interact with prescription drugs. Melatonin effects on pregnant and post-partum people haven’t been significantly studied. Speak with a doctor if you’re pregnant or nursing. If you’re taking melatonin and experience serious side effects or are concerned about overdose, call poison control or seek emergency medical attention immediately. ## Frequently Asked Questions ### How long do melatonin side effects last? Melatonin side effects—such as grogginess, dizziness, headache, or nausea—usually resolve within a few hours as the supplement leaves your system. The exact duration can depend on the dose taken, your metabolism, and whether melatonin was combined with other substances like alcohol or sedating medications. In most cases, side effects are mild and temporary. If symptoms persist longer than a few hours or are severe, it’s best to contact a healthcare professional. ### What are the long-term effects of taking melatonin? In the short-term, you can [take melatonin every night](https://www.sleepfoundation.org/melatonin/is-it-safe-to-take-melatonin-every-night), but long-term use hasn’t been widely studied. Most studies have only followed people using melatonin for about a month. Although longer-term studies haven’t found serious adverse events from using melatonin, experts say there isn’t enough research available to conclude that long-term use of melatonin is safe. ### Can you build a tolerance to melatonin? Melatonin does not typically lead to physical dependence or tolerance in the way that some sleep medications do. However, some people may feel that melatonin becomes less effective over time, especially if taken in high doses or used nightly without addressing the root cause of sleep issues. This reduced effectiveness may be due to changes in your body’s natural melatonin production or sleep patterns rather than true tolerance. If melatonin seems to stop working, it’s a good idea to take a break or consult a healthcare provider to explore other sleep strategies. ### What shouldn’t you take with melatonin? You should avoid taking melatonin with alcohol, caffeine, and certain prescription medications. Alcohol and caffeine can affect your sleep-wake cycle and impact natural melatonin production. Birth control may increase natural melatonin production, too, so taking a melatonin supplement alongside birth control could result in more melatonin than your body can process . Certain anxiety and depression medications can have interactions with melatonin, including some SSRIs and sedatives. Melatonin can boost your immune system, so if you’re taking immunosuppressants, you may want to avoid melatonin. Melatonin can also interfere with prescription drugs that are used to treat sleep disorders. Consult your physician before taking melatonin, especially if you take other prescription medications. ![](https://www.sleepfoundation.org/wp-content/themes/onecaremedia-child/assets/images/sf-question-bubble.svg) ### Still have questions? Ask our community\! Join our [Sleep Care Community](https://community.sleepfoundation.org/) — a trusted hub of sleep health professionals, product specialists, and people just like you. Whether you need expert sleep advice for your insomnia or you’re searching for the perfect mattress, we’ve got you covered. Get personalized guidance from the experts who know sleep best. ![Jay Vera Summer](https://www.sleepfoundation.org/wp-content/uploads/2025/01/jay-vera-summer-2025-profile-photo-150x150.jpg) Written By ### Jay Vera Summer, Contributing Writer Jay Vera Summer is a writer, editor, and wellness coach. She holds a Bachelor's of Science in psychology and Master's degrees in both writing and public policy. ![Dustin Cotliar, MD, MPH](https://www.sleepfoundation.org/wp-content/uploads/2023/10/profiledustin-cotliar-150x150.jpeg) Medically Reviewed by ### Dustin Cotliar, MD, MPH, Physician Dustin Cotliar, MD, holds a medical degree from the State University of NY (SUNY) Downstate College of Medicine, and a master’s in public health from Columbia University, where he focused on healthcare policy and management. He is board-certified in Emergency Medicine, with over eight years of practice that includes emergency medicine, urgent care, and telemedicine. [Learn more about our Editorial Team](https://www.sleepfoundation.org/about-us/who-we-are#team) ## References 11 Sources 1. Besag, F., Vasey, M. J., Lao, K., & Wong, I. (2019). Adverse events associated with melatonin for the treatment of primary or secondary sleep disorders: A systematic review. CNS Drugs, 33(12), 1167–1186. <https://pubmed.ncbi.nlm.nih.gov/31722088/> 2. Freeman, D., Lind, J., Weidle, D., et al. Centers for Disease Control and Prevention. (2024, March 7). Emergency Department Visits for Unsupervised Pediatric Melatonin Ingestion – United States, 2019-2022. Morbidity and Mortality Weekly Report. Centers for Disease Control and Prevention. <https://www.cdc.gov/mmwr/volumes/73/wr/pdfs/mm7309a5-H.pdf> 3. Neubauer, D. (2024, March). Pharmacotherapy for insomnia in adults. In R. Benca, J. Elmore, & A. Eichler (Ed.). UpToDate. <https://www.uptodate.com/contents/pharmacotherapy-for-insomnia-in-adults> 4. Shenoy P, Etcheverry A, Ia J, Witmans M, Tablizo MA. Melatonin Use in Pediatrics: A Clinical Review on Indications, Multisystem Effects, and Toxicity. Children. 2024; 11(3):323. <https://www.mdpi.com/2227-9067/11/3/323> 5. Cohen, P. A., Avula, B., Wang, Y. H., Katragunta, K., & Khan, I. (2023). Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US. JAMA, 329(16), 1401–1402. <https://pubmed.ncbi.nlm.nih.gov/37097362/> 6. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2022, August 8). Melatonin. StatPearls. <https://www.ncbi.nlm.nih.gov/books/NBK534823/> 7. Savage, R., Zafar, N., Yohannan, S., & Miller, J. (2024, February 9). Melatonin. StatPearls. <https://www.ncbi.nlm.nih.gov/books/NBK534823/> 8. Tuft, C., Matar, E., Menczel Schrire, Z., Grunstein, R. R., Yee, B. J., & Hoyos, C. M. (2023). Current Insights into the Risks of Using Melatonin as a Treatment for Sleep Disorders in Older Adults. Clinical interventions in aging, 18, 49–59. <https://pubmed.ncbi.nlm.nih.gov/36660543/> 9. Shenoy, P., Etcheverry, A., Ia, J., WItmans, M., & Tablizo, M. (2024, March 9). Melatonin Use in Pediatrics: A Clinical Review of Indications, Multisystem Effects, and Toxicity. Children, 11, 323. <https://www.mdpi.com/2227-9067/11/3/323> 10. Besag, F. M. C., Vasey, M. J., Lao, K. S. J., & Wong, I. C. K. (2019). Adverse Events Associated with Melatonin for the Treatment of Primary or Secondary Sleep Disorders: A Systematic Review. CNS drugs, 33(12), 1167–1186. <https://pubmed.ncbi.nlm.nih.gov/31722088/> 11. Webley, G. E., & Leidenberger, F. (1986). The circadian pattern of melatonin and its positive relationship with progesterone in women. 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