A Summary of the Key Differences Between the FDA’s Drug and Dietary Supplement GMPs Share page: In general, the Part 111 GMP requirements, although similar, are less stringent and tend to be more flexible than the Part 211 GMP requirements. Document(s) to download: Summary-of-Key-Differences-Between-FDA-Drug-Dietary-Supplement-GMPs-03042015.pdf (147.02 KB) Issues: OTC Medicines Dietary Supplements 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