An adolescent patient with moderate acne has begun a regimen consisting of combination clindamycin/benzoyl peroxide (BenzaClin) and tretinoin (Retin-A)
Which statement by the patient indicates understanding of this medication regimen?
a. "I should apply the Retin-A immediately after bathing."
b. "I should apply the Retin-A twice daily."
c. "I should augment this therapy with an abrasive soap."
d. "I should use sunscreen every day."
ANS: D
Tretinoin increases susceptibility to sunburn, so patients should be warned to apply a sunscreen and wear protective clothing. Before applying Retin-A, the skin should be washed, toweled dry, and allowed to dry fully for 15 to 30 minutes. Retin-A is applied once daily. Abrasive soaps intensify localized reactions to Retin-A and should not be used.
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