Part 331 — Antacid Products for Over-the-Counter (OTC) Human Use
Current through Sep 8, 2026
Authority: 21 U.S.C. 321, 351, 352, 353, 355, 360, 371.
Source: 39 FR 19874, June 4, 1974, unless otherwise noted.
Sections
- § 331.1 Scope.
- § 331.10 Antacid active ingredients.
- § 331.11 Listing of specific active ingredients.
- § 331.15 Combination with nonantacid active ingredients.
- § 331.20 Determination of percent contribution of active ingredients.
- § 331.21 Test modifications.
- § 331.30 Labeling of antacid products.
- § 331.80 Professional labeling.