CFR›Title 21›Chapter I›Part 335›Subpart B ContainsSection 335.10CorpusDaily eCFRDisplayed edition2026-09-08Last updated2026-09-08 Subpart B—Active Ingredients Sections 335.10 § 335.10 Antidiarrheal active ingredients. Previous A Subpart A—General Provisions Next C Subpart C—Labeling