Bacteriostatic Water (BAC)

Bacteriostatic Water, USP is a sterile aqueous solution formulated with a small concentration of benzyl alcohol (0.9%–1.1%), which serves as a bacteriostatic preservative. Unlike standard sterile water, this formulation is designed to inhibit bacterial growth, allowing the solution to remain suitable for multiple withdrawals when used correctly.

Commonly utilized to reconstitute or dilute medications intended for injection, bacteriostatic water plays a critical role in medical and research environments where sterility and consistency are essential. Its preservative content helps maintain product integrity over time, making it a preferred option for controlled preparation processes.