Bacteriostatic vs. Sterile vs. Water for Injection: Why They Are Not Interchangeable

Quick answer: Bacteriostatic Water for Injection contains benzyl alcohol as a preservative, which is what allows repeated withdrawals from one vial. Sterile Water for Injection contains no preservative and is single-use. Water for Injection is the pharmacopeial grade both are made from. The difference is one added compound - and that compound is not chemically […]