Bacteriostatic Water vs Reconstitution Solution Guide How to Store Bacteriostatic (BAC) Water Temperatures, Do's & Don'ts, vialcase.com How to Safely Mix Medications with Bacteriostatic Water? Uses of Bacteriostatic Water for Injections and Where to Get It How to Store Bacteriostatic (BAC) Water Temperatures, Do's & Don'ts, vialcase.com How to Store Bacteriostatic Water Safely Confused about whether BAC water needs refrigeration after opening? According to USP standards and Pfizer's own guidance, both room temp (2025C) and refrigeration are acceptable