A topical drug that is chemically related to vitamin A and is used to treat acne and certain skin disorders such as ichthyosis. Tretinoin may aggravate acne in the first few weeks of treatment but usually improves the condition within 3–4 months. Possible side effects include irritation, peeling, and discoloration of the skin. Exposure of the skin to sunlight while using tretinoin may aggravate irritation and can lead to sunburn.
Tretinoin |
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