Tretinoin
From Free net encyclopedia
Tretinoin is a retinoic acid (vitamin A) drug commonly used to treat acne vulgaris and keratosis pilaris. It is available as a cream or gel (brand name Retin-A®). It is used by some as a hair loss treatment.
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Clinical Pharmacology
Although the exact mode of action of tretinoin is unknown, current evidence suggests that topical tretinoin decreases cohesiveness of follicular epithelial cells with decreased microcomedo formation. Additionally, tretinoin stimulates mitotic activity and increased turnover of follicular epithelial cells causing extrusion of the comedones.
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Side effects and sunscreen use
When used, dryness of the affected skin may occur. Application of sunscreen while using tretinoin is strongly recommended.
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See also
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