Talk to a doctor or pharmacist if you're unsure whether it's safe for you to drive while taking melatonin. There's no firm evidence to suggest that taking melatonin will reduce fertility in either men or women. But speak to a pharmacist or doctor if you're trying to get pregnant. They may want to review your treatment. Melatonin does not affect how contraception works, including the combined pill and emergency contraception. However, your levels of melatonin can increase when taking the combined pill or hormone replacement therapy HRT.
Speak to a doctor or pharmacist before taking melatonin if this applies to you. Do not have drinks that contain caffeine including coffee, cola or energy drinks while you're taking melatonin. Alcohol and melatonin together can make you sleep very deeply, so you do not breathe properly and can have difficulty waking up.
In some countries, melatonin is available to buy in health food shops or online. It is sold as a complementary medicine and comes as "immediate-release" capsules, tablets or a liquid that your drink.
However, these supplements are not authorised for sale in the UK. Melatonin is a prescription-only medicine in the UK. Ordering melatonin online is not recommended. Find out more about the dangers of buying medicines online. Using cannabis, heroin or methadone with melatonin will increase the medicine's sleep-inducing effects.
You could go into a very deep sleep and have difficulty waking up. Talk to a doctor if you think you might use recreational drugs while you're taking melatonin. There are a number of things you can do to help yourself beat insomnia , such as:. Some people find sleeping tablets you can buy in a pharmacy helpful. But these do not cure insomnia and can have unwanted side effects. Do not take any medicines or herbal remedies that make you feel sleepy while taking melatonin. Page last reviewed: 8 November Next review due: 8 November Melatonin - for sleep problems On this page About melatonin Key facts Who can and cannot take melatonin How and when to take it Side effects How to cope with side effects Pregnancy and breastfeeding Cautions with other medicines Common questions.
About melatonin Melatonin is a hormone that occurs naturally in your body. Melatonin is used to treat sleep problems in people aged 55 and over. Melatonin is mainly used to treat sleep problems in adults aged 55 or older. You'll usually take it for 1 to 4 weeks. Some people may get a headache after taking melatonin, or feel tired, sick or irritable the next day.
Avoid drinking alcohol or smoking while taking melatonin. These stop the medicine working as well as it should. Melatonin is also known by the brand name Circadin. To make sure melatonin is safe for you, tell your doctor if you: have had an allergic reaction to melatonin or any other medicines in the past have liver or kidney problems have rheumatoid arthritis , multiple sclerosis or lupus , or any other autoimmune condition.
Follow the instructions that come with your medicine if you're taking melatonin to: prevent headaches treat jet lag If your child is prescribed melatonin, follow the doctor's instructions carefully. For sleep problems in adults Your doctor will prescribe 2mg slow-release or prolonged-release tablets.
How to take it For sleep problems in adults, the usual dose is one 2mg tablet. Take melatonin after food. Swallow the tablet whole. Do not crush or chew it. What if I forget to take it? What if I take too much? Can Melatonin Cause Bad Dreams? What Experts Say. How to Calm Your Anxiety at Night. Trending Topics. What Parents Need to Know. Ugeskrift for Laeger, 19 , V Vural, E. Optimal dosages for melatonin supplementation therapy in older adults: a systematic review of current literature.
Module 6. Conroy, D. Dim light melatonin onset in alcohol-dependent men and women compared with healthy controls. Chronobiology International, 29 1 , 35— Shilo, L. The effects of coffee consumption on sleep and melatonin secretion. Sleep Medicine, 3 3 , — McGrane, I. Melatonin therapy for REM sleep behavior disorder: a critical review of evidence. Sleep Medicine, 16 1 , 19— Toxicology of melatonin. Journal of Biological Rhythms, 12 6 , — Hilli, J.
The effect of oral contraceptives on the pharmacokinetics of melatonin in healthy subjects with CYP1A2 g. Journal of Clinical Pharmacology, 48 8 , — Dokoohaki, S. Corticosteroid therapy exacerbates the reduction of melatonin in multiple sclerosis. Steroids, , 32— Lusardi, P. Cardiovascular effects of melatonin in hypertensive patients well controlled by nifedipine: a hour study.
British Journal of Clinical Pharmacology, 49 5 , — Claustrat, B. Melatonin: Physiological effects in humans. Neuro-Chirurgie, 61 , 77— Learn more about Melatonin. By Jay Summer November 3, By Sarah Shoen September 2, Does Melatonin Expire? By Tom Ryan July 22, By Danielle Pacheco July 15, Does Melatonin Affect Birth Control? By Jay Summer June 3, Related Reading Natural Sleep Aids. Other Articles of Interest Sleep Medications.
There's no better time to start the journey to improving your sleep. Get helpful tips, expert information, videos, and more delivered to your inbox. Turn off bright overhead lights too. Take a walk outside or sit beside a sunny window. Johns Hopkins sleep expert Luis F. But if he has to work in the evening or answer emails, he uses filters to screen out the blue and green wavelengths of light emitted by his smartphone and computer. A filter can help.
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