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 Should BAC water be refrigerated or stored at room temperature? Bacteriostatic Water for Injection USP Hospira Pfizer 30mL 25 Pack Mountainside Medical BAC Water Sunday Is it true that bac water has life of 30 days after 1st used then toss out??? Or is this stuff still usable ?? : r Retatrutide