[Code of Federal Regulations] [Title 21, Volume 5] [Revised as of April 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR358.720] [Page 317] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 358_MISCELLANEOUS EXTERNAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE-- Subpart H_Drug Products for the Control of Dandruff, Seborrheic Dermatitis, and Psoriasis Sec. 358.720 Permitted combinations of active ingredients. Salicylic acid identified in Sec. 358.710(a) (4) may be combined with sulfur identified in Sec. 358.710(a)(6) provided each ingredient is present within the established concentration and the product is labeled for the control of dandruff. Effective Date Note: At 72 FR 9852, Mar. 6, 2007, Sec. 358.720 was revised, effective Apr. 5, 2007. For the convenience of the user, the revised text is set forth as follows: [Page 317] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 358_MISCELLANEOUS EXTERNAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE-- Subpart H_Drug Products for the Control of Dandruff, Seborrheic Dermatitis, and Psoriasis Sec. 358.720 Permitted combinations of active ingredients. (a) Combination of active ingredients for the control of dandruff. Salicylic acid identified in Sec. 358.710(a)(4) may be combined with sulfur identified in Sec. 358.710(a)(7) provided each ingredient is present within the established concentration and the product is labeled according to Sec. 358.750. (b) Combination of control of dandruff and external analgesic active ingredients. Coal tar identified in Sec. 358.710(a)(1) may be used at a concentration of 1.8 percent coal tar solution, on a weight to volume basis, in combination with menthol, 1.5 percent, in a shampoo formulation provided the product is labeled according to Sec. 358.760.