Melatonin Side Effects

Studies show that overall adverse effects are not much more common with melatonin than placebo.

Some studies have side effects of fatigue, dizziness, headache, irritability, and sleepiness, although these effects may occur due to jet lag and not to melatonin itself. Disorientation, confusion, sleepwalking, vivid dreams, and nightmares can occur, and stop after melatonin dosage is stopped. For a full list of side effects, see MedicinePlus for a huge listing.

Is Melatonin safe?

Based on studies, melatonin is regarded as safe in recommended doses for short-term use (three months or less). Although side effects don't happen often, there are a wide array of them.

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