PART 331—ANTACID PRODUCTS FOR OVER-THE-COUNTER (OTC) HUMAN USE
- SUBPART A—General Provisions (§331.1 to §331.1)
- SUBPART B—Active Ingredients (§331.10 to §331.15)
- SUBPART C—Testing Procedures (§331.20 to §331.21)
- SUBPART D—Labeling (§331.30 to §331.80)