Melatonin Side Effects
Applies to melatonin: oral capsule, oral liquid, oral solution, oral tablet, oral tablet disintegrating, oral tablet extended release, sublingual tablet
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Although not all side effects are known, melatonin is thought to be possibly safe when taken for a short period of time (up to 2 years in some people).
Common side effects may include:
depressed mood, feeling irritable;
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
Some side effects may not be reported. You may report them to the FDA.