Quick answer
The United States Pharmacopeia's chapter governing sterile compounding standards. Defines facility, personnel, and process requirements compounding pharmacies must meet to prepare sterile preparations like injectable GLP-1s.
Full definition
USP General Chapter <797> is the United States Pharmacopeia's enforceable standard for pharmaceutical compounding of sterile preparations. It sets requirements for cleanrooms (ISO classifications), garbing, hand hygiene, environmental monitoring, personnel competency, beyond-use dating, and labeling. Compliance is required for both 503A and 503B compounders preparing sterile products. A revised version became official in November 2023 with updated air-quality and competency requirements. Failures of <797> compliance have been cited in numerous compounding-related sterility incidents.
Deep dive
USP <797>: complete reference
USP General Chapter <797> is a United States Pharmacopeia standard establishing requirements для compounded sterile preparations (CSPs) — covering personnel training + qualifications, facility design (cleanrooms, ISO classifications), environmental monitoring, beyond-use dating, и quality assurance. USP <797> applies to all pharmacies preparing sterile injectable medications, including compounded GLP-1s (semaglutide, tirzepatide). Compliance levels: Category 1 (low-risk, ≤12 hour BUD), Category 2 (medium-risk, 1-9 day BUD depending on conditions), Category 3 (highest-risk, longest BUD with strictest controls). Compounding pharmacies preparing injectable GLP-1s typically operate under Category 2 standards with refrigerated storage. State boards of pharmacy enforce USP <797> compliance — pharmacies failing inspections face license suspension or loss. PCAB accreditation evaluates USP <797> compliance as part of certification. Patients evaluating compounded GLP-1 sources can ask pharmacy directly about USP <797> compliance + last inspection date as a quality indicator.
- In practice
- Compounded semaglutide must be prepared в a USP <797>-compliant cleanroom by trained pharmacy staff. The standard ensures sterility + consistent quality — без it, infection risk + dose variability increase.
- Clinical context
- USP <797> compliance is the baseline quality standard для compounded sterile preparations. Check pharmacy compliance as part of due diligence.
Medications
USP <797> is most directly relevant to the following GLP-1 medications:
Related terms
- 503A Compounding Pharmacy — A state-licensed pharmacy that prepares patient-specific compounded medications based on a valid pre…
- 503B Outsourcing Facility — A federally registered pharmacy that produces compounded medications in bulk for healthcare faciliti…
- Beyond-Use Date (BUD) — The date after which a compounded preparation must not be used. Different from a manufacturer expira…
Continue learning
GLP1Zoom glossary is educational reference. Definitions are summary interpretations of clinical sources and not a substitute for prescribing-information detail. Full disclaimer.
References
Glucagon-Like Peptide-1 Receptor Agonists: Mechanisms и Clinical Use (Drucker, Cell Metabolism)(2018)
Tirzepatide GIP/GLP-1 Dual Agonism: Mechanism Review (Lancet Diabetes & Endocrinology)(2021)
GLP-1 Effects on Gastric Emptying: Pharmacology Review (American J Physiology)(2020)
Endocrine Society Clinical Practice Guideline: Pharmacological Management of Obesity(2015)
STEP-1 trial: Once-Weekly Semaglutide in Adults with Overweight or Obesity (Wilding et al., NEJM)(2021)
SURMOUNT-1 trial: Tirzepatide Once Weekly для Treatment of Obesity (Jastreboff et al., NEJM)(2022)
SUSTAIN-6 trial: Semaglutide and Cardiovascular Outcomes (Marso et al., NEJM)(2016)
SURPASS-2 trial: Tirzepatide vs Semaglutide в Type 2 Diabetes (Frias et al., NEJM)(2021)
LEADER trial: Liraglutide and Cardiovascular Outcomes в T2D (Marso et al., NEJM)(2016)