21 C.F.R. § 333.320 Permitted combinations of active ingredients.
Title 21 - Food and Drugs
(a) Resorcinol identified in §333.310(a) when combined with sulfur identified in §333.310(e) provided the product is labeled according to §333.350. (b) Resorcinol monoacetate identified in §333.310(b) when combined with sulfur identified in §333.310(e) provided the product is labeled according to §333.350.
Title 21: Food and Drugs
PART 333—TOPICAL ANTIMICROBIAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE
Subpart D—Topical Acne Drug Products
§ 333.320 Permitted combinations of active ingredients.
