what are side effects of melatonin pills
Doses of melatonin (2-3 mg or higher) have reported side effects of: 1  Headaches. 2  Nausea. 3  Next-day grogginess.  Hormone 1  fluctuations. Vivid dreams and nightmares.
Other, less common melatonin side effects might include abdominal discomfort, mild anxiety, irritability, confusion and short-lasting feelings of depression. In addition, melatonin supplements can interact with various medications, including: Blood-thinning medications (anticoagulants)