Uses of Bacteriostatic Water for Injections and Where to Get It How To Store Bacteriostatic Water Aussie Bac Water Bacteriostatic Water for Injection USP Hospira Pfizer 30mL 25 Pack Mountainside Medical 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 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