Circadin is a brand of tablets containing the active ingredient melatonin. It is available only with a doctor’s prescription.
Circadin is used to improve sleep quality and morning alertness in people aged 55 years or over who don't sleep well. Your body produces the hormone melatonin, which controls your 24-hour body clock. This is called the circadian rhythm. The melatonin in Circadin, which is not from plants or animals, helps you to go to sleep.
Circadin tablets are swallowed whole with a full glass of water. The usual way of taking Circadin is one tablet after food, 1 to 2 hours before you go to bed.
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