Melatonin Side Effects
What should I watch for?
See your doctor if your symptoms do not get better or if they get worse. Do not take this supplement for more than 2 weeks unless your doctor tells you to.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
Talk to your doctor before you use this supplement if you are currently being treated for an emotional, mental, or sleep problem. This medicine may interfere with your treatment.
Herbal or dietary supplements are not regulated like medicines. Rigid quality control standards are not required for dietary supplements. The purity and strength of these products can vary. The safety and effect of this dietary supplement for a certain disease or illness is not well known. This product is not intended to diagnose, treat, cure or prevent any disease.
The Food and Drug Administration suggests the following to help consumers protect themselves:
- Always read product labels and follow directions.
- Natural does not mean a product is safe for humans to take.
- Look for products that include USP after the ingredient name. This means that the manufacturer followed the standards of the US Pharmacopoeia.
- Supplements made or sold by a nationally known food or drug company are more likely to be made under tight controls. You can write to the company for more information about how the product was made.
Side Effects to watch for
Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- breathing problems
- depressed mood, irritable, or other changes in moods or behaviors
- feeling faint or lightheaded, falls
- increased blood pressure
- irregular or missed menstrual periods
- signs and symptoms of liver injury like dark yellow or brown urine; general ill feeling or flu-like symptoms; light-colored stools; loss of appetite; nausea; right upper belly pain; unusually weak or tired; yellowing of the eyes or skin
- trouble staying awake or alert during the day
- unusual activities while you are still asleep like driving, eating, making phone calls
- unusual bleeding or bruising
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
What may interact with this drug?
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
- certain antibiotics like ciprofloxacin
- certain medicines for depression, anxiety, or psychotic disturbances
- female hormones, like estrogens and birth control pills, patches, rings, or injections
- other medications for sleep
- other herbal or dietary supplements
- smoking tobacco