Melatonin side effects: What are the risks? - Mayo Clinic

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Is melatonin a helpful sleep aid - and what should I know about melatonin side effects

Answer From Brent A. Bauer, M.D. The hormone melatonin plays a role in the sleep-wake cycle. Natural levels of melatonin in the blood are highest at night. Some research suggests that melatonin supplements might be helpful in treating sleep disorders, such as delayed sleep phase. They also may provide some relief from insomnia and jet lag. Melatonin is generally safe for short-term use. Unlike with many sleep medications, with melatonin you are unlikely to become dependent on it, have less response to it after repeated use or experience a hangover effect. The most common melatonin side effects include: Headache Dizziness Nausea Daytime drowsiness Other, less common melatonin side effects might include: Vivid dreams or nightmares Short-term feelings of depression Irritability Stomach cramps Nausea Diarrhea Constipation Decreased appetite Urinary incontinence at night Increased risk of falls Increased risk of seizures Confusion or disorientation Mood swings Reduced alertness Because melatonin can cause drowsiness, don't drive or use machinery within five hours of taking it. Melatonin supplements can interact with some types of medicine, including: Medicine that slows blood clotting Medicine that prevents seizures Birth control medicine High blood pressure medicine Diabetes medicine Medicine that suppresses the immune system (immunosuppressants) Medicine that is broken down by the liver Before you take melatonin supplements, check with your health care provider first, especially if you have any health conditions or if you are taking other medicine. Melatonin supplements you can buy without a prescription vary widely in the amount of melatonin they contain. Your provider can help you decide if melatonin is right for you and, if so, which one is a good choice for your situation. And keep in mind that, as with any supplement, melatonin shouldn't be the first or only remedy you use to try to resolve a health concern such as insomnia. It needs to be coupled with lifestyle choices that create a solid foundation for good health. That includes fundamentals such as good nutrition, daily exercise, a daily mind-body practice, good sleep hygiene, social connectedness and spirituality. With Brent A. Bauer, M.D. There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form.

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Measles vaccine: Can I get the measles if I've already been vaccinated?Nail ridges ShareTweet Oct. 27, 2022 Show references Melatonin: What you need to know. National Center for Complementary and Integrative Health. https://nccih.nih.gov/health/melatonin. Accessed Aug. 31, 2022. Melatonin. Natural Medicines. https://naturalmedicines.therapeuticresearch.com. Accessed Aug. 31, 2022. Neubauer DN. Pharmacotherapy for insomnia in adults. https://www.uptodate.com/contents/search. Accessed Aug. 31, 2022. Ferracioli-Oda E, et al. Meta-analysis: Melatonin for the treatment of primary sleep disorders. PLoS One. 2013; doi:10.1371/journal.pone.0063773. Erland LAE, et al. Melatonin natural health products and supplements: Presence of serotonin and significant variability of melatonin content. Journal of Clinical Sleep Medicine. 2017; doi: 10.5664/jcsm.6462. Bauer BA (expert opinion). Mayo Clinic. Sept. 1, 2022. See more Expert Answers

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