Hormone
Melatonin
Melatonin is a hormone made by the pineal gland in the brain, mainly at night, and is part of the body's sleep-wake rhythm. Supplements contain synthetic melatonin.
Also listed as N-Acetyl-5-Methoxytryptamine, Melatonine, Melovine, Melatol
Immediate and prolonged release are different products
In the EU, Circadin is a prescription prolonged-release medicine containing 2 mg melatonin, authorized for short-term primary insomnia in adults aged 55 and older. Its assessed formulation and patient group should not be treated as interchangeable with every supplement. 1