descriptionsIsotretinoin is an oral drug used for the treatment and prevention of severe acne. Acne is caused by inflammation of the skin. It primarily affects teenagers but it also affects adults. Severe acne causes permanent scarring of the skin. The inflammation is caused in part by an increased secretion of sebum oily substance from glands in the skin sebaceous glands. The sebum provokes inflammation and the inflammation resolves heals with the formation of a scar keratinization. The exact mechanism of action of isotretinoin is not known however it may reduce acne by reducing the secretion of sebum. If less sebum is secreted it is likely that there will be less inflammation and keratinization. The Food and Drug Administration approved isotretinoin in 1982.
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