Bacteriostatic Water

Bacteriostatic Water 10 mL product information

Check the vial label, seal, lot information and any accompanying documentation before use. Do not assume that a commercial research product is equivalent to a specific authorized drug label.

What is bacteriostatic water?

Official DailyMed drug labels describe Bacteriostatic Water for Injection, USP as sterile, nonpyrogenic water containing 0.9% benzyl alcohol as a bacteriostatic preservative. The preservative differentiates it from preservative-free sterile water and permits repeated withdrawals under the conditions stated by the applicable manufacturer.

DailyMed also makes clear that bacteriostatic water is a diluent rather than a therapeutic active ingredient. Compatibility, final concentration and handling requirements depend on the material being prepared and its manufacturer instructions.

Why does the 0.9% benzyl alcohol distinction matter?

Benzyl alcohol helps inhibit bacterial growth, but it also introduces important safety limitations. Official labels warn that benzyl-alcohol-containing products must not be used in neonates and that bacteriostatic water should not be administered intravenously without a solute because hemolysis may occur. These facts are included to prevent the phrase “sterile water” from being interpreted as universal compatibility.

Laboratory handling and documentation

Researchers should use aseptic procedures, inspect the container and follow the specific instructions attached to the material being diluted. This page does not calculate concentrations, recommend a volume, provide a peptide-mixing table or replace a regulated product label.

For the broader catalogue, see the SRL peptide research category. The inclusion of that link does not mean this water is compatible with every listed compound.

Bacteriostatic Water 10 mL frequently asked questions

How much bacteriostatic water is supplied?

The SRL listing identifies one 10 mL vial.

What preservative is listed?

The product page lists 0.9% benzyl alcohol. Confirm this information on the vial label received.

Is bacteriostatic water the same as sterile water without preservative?

No. Bacteriostatic water contains a preservative, while preservative-free sterile water does not. Their warnings and appropriate applications are not interchangeable.

Can this page tell me how much water to add to a peptide?

No. This page does not provide reconstitution, concentration, dosing or injection instructions. Follow the instructions for the specific authorized material and consult a qualified professional where appropriate.

Can bacteriostatic water be used by itself for intravenous injection?

Official labels warn against intravenous administration without a solute because hemolysis may occur.

How should an unopened vial be stored?

Follow the exact storage conditions on the product label. As a reference point, the cited DailyMed label specifies controlled room temperature of 20 to 25°C for that labelled product, but the label received with this SRL item remains controlling.

Authoritative reference

• DailyMed: Bacteriostatic Water for Injection, USP — description, warnings, precautions and storage.

Important notice: This page is informational and does not provide medical advice, injection guidance, dosing or a preparation protocol. Verify the label and applicable regulatory status of the product in hand.