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What is Melatonin?

Melatonin is used for Sleep disorders, Sleep disorder, Postpones aging, Boosts immune function, Disturbed biorhythms, Difficulty sleeping and other conditions. This salt may also be used for purposes not listed in this medication guide. Detailed information related to Melatonin's uses, side-effects, reviews, questions, interactions, and precautions is as follows:

Melatonin Uses

Melatonin is used for the treatment, control, prevention, & improvement of the following diseases, conditions and symptoms:
References: 1, 2, 3, 4
Learn more: Uses

Melatonin Working, Mechanism of Action and Pharmacology

Melatonin improves the patient's condition by performing the following functions:
References: 5

Melatonin - Side-effects

The following is a list of possible side-effects that may occur in medicines that contain Melatonin. This is not a comprehensive list. These side-effects are possible, but do not always occur. Some of the side-effects may be rare but serious. Consult your doctor if you observe any of the following side-effects, especially if they do not go away.
If you notice other side-effects not listed above, contact your doctor for medical advice. You may also report side-effects to your local food and drug administration authority.
References: 6
Learn more: Side-effects

Melatonin - Precautions & How to Use

Before using Melatonin, inform your doctor about your current list of medications, over the counter products (e.g. vitamins, herbal supplements, etc.), allergies, pre-existing diseases, and current health conditions (e.g. pregnancy, upcoming surgery, etc.). Some health conditions may make you more susceptible to the side-effects of the drug. Take as directed by your doctor or follow the direction printed on the product insert. Dosage is based on your condition. Tell your doctor if your condition persists or worsens. Important counseling points are listed below.

Melatonin - Drug Interactions

If you use other drugs or over the counter products at the same time, the effects of Melatonin may change. This may increase your risk for side-effects or cause your drug not to work properly. Tell your doctor about all the drugs, vitamins, and herbal supplements you are using, so that you doctor can help you prevent or manage drug interactions. Melatonin may interact with the following drugs and products:
Learn more: Interactions

Melatonin - Contraindications

Hypersensitivity to Melatonin is a contraindication. In addition, Melatonin should not be used if you have the following conditions:
  • Alcohol
  • Allergic reactions
  • Autoimmune diseases
  • Breastfeeding
  • Children
  • Intolerance to some sugars
Learn more: Contraindications

Where to Buy Melatonin

Melatonin - Frequently asked Questions

  • Is Melatonin safe to consume or apply when pregnant?
  • Is Melatonin safe while breastfeeding?
  • Can Melatonin be used for sleep disorders and sleep disorder?
    Yes, sleep disorders and sleep disorder are among the most common reported uses for Melatonin. Please do not use Melatonin for sleep disorders and sleep disorder without consulting first with your doctor. Click here and view survey results to find out what other patients report as common uses for Melatonin.
  • How long do I need to use Melatonin before I see improvement of my conditions? website users have reported 2 weeks and 1 day as the most common time it takes before they saw improvements in their conditions. These times may not be reflective of what you may experience or how you should use this medicine. Please consult with your doctor to check how long do you need to use Melatonin. Click here and view survey results to find out what other patients report as time for effectiveness for Melatonin.
  • At what frequency do I need to use Melatonin? website users have reported once a day and twice a day as the most common frequency of using Melatonin. Please follow your doctor's advice on how often you need to Melatonin. Click here and view survey results to find out what other patients report as frequency of using Melatonin.
  • Should I consume Melatonin empty stomach, before food or after food? website users have most commonly reported consuming Melatonin after food. However, this may not be reflective of how you should consume this medicine. Please follow your doctor's advice on how you should use this medicine. Click here and view survey results to find out what other patients report as timing of using Melatonin.
  • Is it safe to drive or operate heavy machinery when consuming?
    If you experience drowsiness, dizziness, hypotension or a headache as side-effects when using Melatonin medicine then it may not be safe to drive a vehicle or operate heavy machinery. One should not drive a vehicle if using the medicine makes you drowsy, dizzy or lowers your blood-pressure extensively. Pharmacists also advise patients not to drink alcohol with medicines as alcohol intensifies drowsiness side-effects. Please check for these effects on your body when using Melatonin. Always consult with your doctor for recommendations specific to your body and health conditions.
  • Is this medicine or product addictive or habit forming?
    Most medicines don't come with a potential for addiction or abuse. Usually, government's categorizes medicines that can be addictive as controlled substances. Examples include schedule H or X in India and schedule II-V in the US. Please consult the product package to make sure that the medicine does not belong to such special categorizations of medicines. Lastly, do not self-medicate and increase your body's dependence to medicines without the advice of a doctor.
  • Can it be stopped immediately or do I have to slowly ween off consumption?
    Some medicines need to be tapered or cannot be stopped immediately because of rebound effects. Please consult with your doctor for recommendations specific to your body, health and other medications that you may be using.

Other important Information on Melatonin

Missing a dose

In case you miss a dose, use it as soon as you notice. If it is close to the time of your next dose, skip the missed dose and resume your dosing schedule. Do not use extra dose to make up for a missed dose. If you are regularly missing doses, consider setting an alarm or asking a family member to remind you. Please consult your doctor to discuss changes in your dosing schedule or a new schedule to make up for missed doses, if you have missed too many doses recently.
References: 7, 8, 9, 10

Overdosage of Melatonin

  • Do not use more than prescribed dose. Taking more medication will not improve your symptoms; rather they may cause poisoning or serious side-effects. If you suspect that you or anyone else who may have overdosed of Melatonin, please go to the emergency department of the closest hospital or nursing home. Bring a medicine box, container, or label with you to help doctors with necessary information.
  • Do not give your medicines to other people even if you know that they have the same condition or it seems that they may have similar conditions. This may lead to overdosage.
  • Please consult your physician or pharmacist or product package for more information.
References: 11, 12, 13

Storage of Melatonin

  • Store medicines at room temperature, away from heat and direct light. Do not freeze medicines unless required by package insert. Keep medicines away from children and pets.
  • Do not flush medications down the toilet or pour them into drainage unless instructed to do so. Medication discarded in this manner may contaminate the environment. Please consult your pharmacist or doctor for more details on how to safely discard Melatonin.
References: 14, 15, 16, 17

Expired Melatonin

  • Taking a single dose of expired Melatonin is unlikely to produce an adverse event. However, please discuss with your primary health provider or pharmacist for proper advice or if you feel unwell or sick. Expired drug may become ineffective in treating your prescribed conditions. To be on the safe side, it is important not to use expired drug. If you have a chronic illness that requires taking medicine constantly such as heart condition, seizures, and life-threatening allergies, you are much safer keeping in touch with your primary health care provider so that you can have a fresh supply of unexpired medications.
References: 18, 19

Dosage Information

Please consult your physician or pharmacist or refer to product package.

Questions - Melatonin

No questions have been asked.

News and Updates

Latest news and updates related to Melatonin. Subscribe to get latest posts via email or subscribe to a RSS feed.
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Melatonin - Demographic Information


  1. DailyMed LABEL: MELATONIN - melatonin, liquid - Accessed: October 12, 2016.
  2. Peres, MF; Masruha, MR; Zukerman, E; Moreira-Filho, CA; Cavalheiro, EA (April 2006). "Potential therapeutic use of melatonin in migraine and other headache disorders.". Expert Opinion on Investigational Drugs. 15 (4): 367_75. doi: PMID 16548786. - Accessed: October 12, 2016.
  3. Koppisetti S, Jenigiri B, Terron MP, Tengattini S, Tamura H, Flores LJ, Tan DX, Reiter RJ (October 2008). "Reactive oxygen species and the hypomotility of the gall bladder as targets for the treatment of gallstones with melatonin: a review". Dig. Dis. Sci. 53 (10): 2592_603. doi:10.1007/s-5. PMID 18338264. - Accessed: October 12, 2016.
  4. Merrick, L; Youssef, D; Tanner, M; Peiris, AN (June 2014). "Does melatonin have therapeutic use in tinnitus?". Southern Medical Journal. 107 (6): 362_6. doi:10.14423/01.smj.0000.d4. PMID 24945170. - Accessed: October 12, 2016.
  5. Pubchem Melatonin - Accessed: October 12, 2016.
  6. HSDB Record Name: MELATONIN - Accessed: October 12, 2016.
  7. - Accessed: July 14, 2016.
  8. - Accessed: July 3, 2016.
  9. Cancer.Net (2014). - Accessed: July 3, 2016.
  10. Schachter, S.C., Shafer, P. O. &; Sirven, J.I. (2013). - Accessed: May 28, 2016.
  11. National Institute of Drug Abuse (2010). - Accessed: July 21, 2016.
  12. eMedicinehealth (2016). - Accessed: July 21, 2016.
  13. Centers for Disease Control and Prevention (2010). - Accessed: July 21, 2016.
  14. Centers for Disease Control and Prevention. December 12, 2011. - Accessed: June 10, 2016.
  15. The Center for Improving Medication Management and the National Council on Patient Information and Education. - Accessed: June 10, 2016.
  16. U.S. Food and Drug Administration. December 24, 2013. - Accessed: June 10, 2016.
  17. World Health Organization: - Accessed: July 1, 2016.
  18. Lyon, R. C., Taylor, J. S., Porter, D. A., et al. (2006) Stability profiles of drug products extended beyond labeled expiration dates. Journal of Pharmaceutical Sciences; 95:1549-60 - Accessed: July 3, 2016.
  19. Harvard Medical School (2016). - Accessed: May 1, 2016.

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APA Style Citation

  • Melatonin - Uses, Side-effects, Reviews, and Precautions - (n.d.). Retrieved January 21, 2018, from

MLA Style Citation

  • "Melatonin - Uses, Side-effects, Reviews, and Precautions -" N.p., n.d. Web. 21 Jan. 2018.

Chicago Style Citation

  • "Melatonin - Uses, Side-effects, Reviews, and Precautions -" Accessed January 21, 2018.

Last updated date

This page was last updated on 1/20/2018.
This page provides information for Melatonin in English.
Read Reviews » Melatonin

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