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The optimal amount, or quantity, of sleep varies from individual to individual. However, there is poor correlation between quantity of sleep, as measured by e.g. electrodes in sleep labs, and quality of sleep, as perceived by the patient. Quality of sleep is more closely related to physical and mental health than to sleep quantity. In contrast to other sleep drugs, focused on quantity of sleep, quality of sleep, as evaluated by validated questionnaires, was the primary endpoint when developing Circadin. The active substance of Circadin, melatonin, belongs to a natural group of hormones produced by the body. Circadin is used as monotherapy for the short-term treatment of primary insomnia (difficulty in getting to sleep or staying asleep, or poor quality of sleep for at least one month), characterised by poor quality of sleep in patients aged 55 years and older.

Patient Information Leaflet (PIL)

Please click here for the patient information leaflet

Product type:



Presciption only (POM)

Available as:

2mg Prolonged-release

Please contact your doctor or pharmacist for further advice.
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