21 C.F.R. § 341.14 Antitussive active ingredients.
Title 21 - Food and Drugs
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 §341.74(d): (a) Oral antitussives. (1) Chlophedianol hydrochloride. (2) Codeine ingredients. The following ingredients may be used only in combination in accordance with §§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]
Title 21: Food and Drugs
PART 341—COLD, COUGH, ALLERGY, BRONCHODILATOR, AND ANTIASTHMATIC DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE
Subpart B—Active Ingredients
§ 341.14 Antitussive active ingredients.