Isotretinoin - brand name Roaccutane - is a pill first licensed in the UK for the treatment of severe acne in 1983 and has since been taken by hundreds of thousands of patients.
Jon Medland killed himself at uni after stopping a three-week course of the drug
According to father Jonathan it was the result of a sudden psychotic episode
Rachael Edmunds slipped into a deep depression as a result of her angry acne
She hails taking Roaccutane as her best decision after seeing her skin improve
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