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What Is USP 797? Sterile Compounding Standards Explained
USP <797> (United States Pharmacopeia Chapter 797) is the pharmaceutical standard that governs the preparation of sterile compounded preparations in the United States. It applies to all entities — pharmacies, hospitals, physician offices, and veterinary facilities — that prepare sterile preparations beyond a patient-specific, immediate-use scenario. Understanding USP 797 is essential for anyone purchasing or using pharmaceutical-grade materials in compounding or research applications.
What USP 797 Covers
The chapter addresses every aspect of the sterile compounding environment and process:
- Facility and engineering controls: ISO-classified cleanrooms (ISO 5 for primary engineering controls, ISO 7 for ante rooms), HEPA filtration, air pressure differentials
- Environmental monitoring: Viable (microbial) and non-viable (particle) air sampling, surface sampling, pressure differential monitoring
- Personnel training and garbing: Aseptic technique competency assessment, sterility testing, glove fingertip sampling
- Beyond-use dates (BUDs): Maximum storage periods for sterile preparations based on preparation conditions and sterility test data
- Component quality: Requirements for APIs, excipients, and diluents — including bacteriostatic water — used in sterile preparations
- Quality control testing: Sterility testing, endotoxin testing, appearance inspection, label review
How USP 797 Applies to Bacteriostatic Water
When a compounding pharmacy uses bacteriostatic water as a diluent in sterile preparations, USP 797 requires that the water be of documented pharmaceutical quality. This means:
- The supplier must be able to provide a batch-specific COA for each lot used
- The COA must document relevant quality parameters including purity, endotoxin levels, sterility, and pH
- The pharmacy must verify the COA matches the physical lot received
- The supplier must be qualified through a supplier qualification process
The 2023 USP 797 Revision — Key Changes
The most recent revision of USP 797, which became effective November 1, 2023, introduced several significant updates:
- More detailed BUD requirements tied to preparation conditions and sterility testing outcomes
- Enhanced environmental monitoring frequency requirements
- Strengthened personnel competency assessment requirements
- Updated cleaning and disinfection procedures
- Clearer separation between Category 1 (shorter BUD, no sterility testing required) and Category 2 (longer BUD, sterility testing required) preparations
Is Renew Lab Group compliant with USP 797?
Renew Lab Group manufactures bacteriostatic water in a USP 797-compliant cleanroom facility in Houston, Texas. Our manufacturing processes, environmental controls, and quality testing meet or exceed the standards set forth in USP 797 for pharmaceutical-grade sterile preparations. Every batch is accompanied by documentation suitable for pharmacy supplier qualification programs.
What documentation do I need from my BAC water supplier for USP 797 compliance?
For USP 797 supplier qualification, you need at minimum: the supplier name and address, applicable licenses or regulatory oversight documentation, and batch-specific COAs for each lot used. The COA should include purity data, endotoxin results, sterility results, and other relevant quality parameters. Renew Lab Group provides all of this with every order and upon request for your supplier qualification file.
USP 797-Ready BAC Water Documentation
Complete COA, HPLC data, endotoxin results — everything your compliance program requires.
