What Is Melatonin?

Potential Side Effects

Melatonin supplements are recognized as safe for most individuals. Side effects are uncommon, but include dizziness, headaches, drowsiness, and nausea. Daytime drowsiness is especially common. Patients who take larger doses may be at an increased risk of side effects, and melatonin supplements have produced morning hangovers in individuals who exceeded the recommended dose. Some adults have reported depression, irritability, and stomach pain while taking melatonin.

In addition to nausea, dizziness, and headaches, pediatric patients have experienced diarrhea and bedwetting due to taking melatonin supplements. It appears that these supplements may increase the risk of seizures in children who have severe neurological conditions. Less common side effects include anxiety, vivid dreams or nightmares, confusion, loss of appetite, joint or back pain, and blood pressure changes.

Continue reading to learn about the precautions to remember when taking melatonin now.