Is it too much to take 20 mg of melatonin at night?

Lots of people take melatonin pills to fall asleep quicker and in a more relaxed manner when they are stressed out. ... Melatonin Safety; Melatonin Pill Side Effects; How Much Melatonin is Too Much? ... The dose of 10mg is taken before bedtime, and the entire treatment usually goes for about nine weeks. read more

Yes, it's too much. The recommended dose is 3-5mg at night to help you sleep. With 20mg, you'll likely have a long, deep sleep (the intended effect), but will have some profound daytime drowsiness the next day. It won't kill you unless you drive on it and get in a car accident. read more

The research was conducted by Richard Wurtman, who pioneered the pharmaceutical use of melatonin as a sleep aid in 1994. Pills and supplements often sell 10 times that suggested amount in a single dose. This can lead to higher plasma melatonin levels the next day, which can cause a "hangover" effect that leaves users groggy. read more