noun[mass noun] Medicine
A preparation of retinoic acid, applied to the skin to treat acne and other disorders.
- Topical retinoids such as tretinoin or adapalene are effective in many patients with comedonal acne.
- These data suggest that topical tretinoin is a useful agent in the treatment of steroid-induced acne.
- Like tretinoin, adapalene may cause skin irritation and initial exacerbation of acne lesions.
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