CFR›Title 21›Chapter I›Part 200›Subpart C ContainsSections 200.50–200.51CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart C—Requirements for Specific Classes of Drugs Sections 200.50 § 200.50 Ophthalmic preparations and dispensers. 200.51 § 200.51 Aqueous-based drug products for oral inhalation. Previous A Subpart A—General Provisions Next E Subpart E—Prescription Drug Consumer Price Listing