21 C.F.R. Subpart B—Active Ingredients
Title 21 - Food and Drugs
The active ingredient of the product consists of any one of the following when used within the dosage limits established for each ingredient in §335.50(d): (a) Bismuth subsalicylate. (b) Kaolin.
Title 21: Food and Drugs
PART 335—ANTIDIARRHEAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE
Subpart B—Active Ingredients
§ 335.10 Antidiarrheal active ingredients.
