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 Press Releases and Statements West Virginia Expands Access to OTC Cold & Allergy Medications Containing PSE Mar 6, 2024 Press Releases and Statements CHPA Statement on Valisure Citizen Petition Mar 6, 2024 Summary of State Sales Tax Jun 1, 2018