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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 21
Chapter I
Part 335 - PART 335—ANTIDIARRHEAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE
Subpart A [§ 335.1 - § 335.3] - Subpart A—General Provisions
Subpart B [§ 335.10 - § 335.10] - Subpart B—Active Ingredients
Subpart C [§ 335.50 - § 335.50] - Subpart C—Labeling
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