Comments to USP: Proposals for Developing Compendial Quality Standards for OTC Drugs Share page: Letter to Principal Scientific Liaison, U.S. Pharmacopeia, regarding Proposals for Developing Compendial Quality Standards for OTC Drugs. Download Document Issues: OTC Medicines Other Issues Quality Related Posts Polibrief Per-and Polyfluoroalkyl Substances (PFAS) Nov 20, 2024 Polibrief Over-the-Counter Drug Cosmetic Products Nov 20, 2024 Polibrief OTC Contraceptives Nov 20, 2024