21 C.F.R. Subpart B—Active Ingredient
Title 21 - Food and Drugs
The active ingredient of the product consists of caffeine when used within the dosage limits established in §340.50(d).
Title 21: Food and Drugs
PART 340—STIMULANT DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE
Subpart B—Active Ingredient
§ 340.10 Stimulant active ingredient.