[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: 21CFR341.14] [Page 237] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 341_COLD, COUGH, ALLERGY, BRONCHODILATOR, AND ANTIASTHMATIC DRUG PRODUCTS Subpart B_Active Ingredients Sec. 341.14 Antitussive active ingredients. The active ingredients of the product consist of any of the following when used within the dosage limits and in the dosage forms established for each ingredient in Sec. 341.74(d): (a) Oral antitussives. (1) Chlophedianol hydrochloride. (2) Codeine ingredients. The following ingredients may be used only in combination in accordance with Sec. Sec. 290.2 and 21 CFR 1308.15(c). (i) Codeine. (ii) Codeine phosphate. (iii) Codeine sulfate. (3) Dextromethorphan. (4) Dextromethorphan hydrobromide. (5) Diphenhydramine citrate. (6) Diphenhydramine hydrochloride. (b) Topical antitussives. (1) Camphor. (2) Menthol. [52 FR 30055, Aug. 12, 1987, as amended at 59 FR 29174, June 3, 1994; 67 FR 4907, Feb. 1, 2002]