Bacteriostatic water typically costs between $10 and $20 for a multi-dose vial, depending on the brand and volume. These costs do not include shipping or any potential handling fees.
Where Can You Buy Bacteriostatic Water?
Bacteriostatic water is available from various online pharmacies and medical supply companies. Some retailers specializing in compounded medications or laboratory supplies also carry it.
What is Bacteriostatic Water Used For?
Bacteriostatic water is a sterile solution used for the dilution and reconstitution of injectable medications. It contains benzyl alcohol as a bacteriostatic agent, which prevents the growth of bacteria in multi-dose vials after the stopper has been punctured. This allows the vial to be used for multiple injections over a period of time, provided it is stored and handled correctly.
How Does Bacteriostatic Water Differ from Sterile Water?
The key difference lies in the presence of benzyl alcohol. Sterile water is simply water that has been sterilized and is free of microorganisms. Bacteriostatic water, in addition to being sterile, contains 0.9% benzyl alcohol to inhibit bacterial growth. This makes bacteriostatic water suitable for multi-use vials, whereas sterile water is typically intended for single-use reconstitution or injection.
Are There Any Risks Associated with Using Bacteriostatic Water?
While generally safe for its intended purpose, bacteriostatic water is not recommended for intravenous administration [1]. The benzyl alcohol it contains can cause adverse reactions in some individuals, particularly neonates, and can be toxic if injected directly into the central nervous system [1]. It should also not be used in patients with a known hypersensitivity to benzyl alcohol. Always follow the specific instructions provided by the manufacturer and your healthcare provider.
What Are the Alternatives to Bacteriostatic Water?
For reconstituting medications intended for a single use, sterile water for injection is often the appropriate diluent. For medications that require a specific buffer or saline solution for reconstitution, those respective sterile solutions would be used instead of bacteriostatic water.
How Long is Bacteriostatic Water Good For After Opening?
The expiration date of bacteriostatic water is printed on the vial. Once opened, the multi-dose vial can typically be used for up to 28 days, assuming aseptic technique is maintained during each use. However, it is crucial to adhere to the specific expiration and usage guidelines provided by the manufacturer, as these can vary.
Why is Benzyl Alcohol Included in Bacteriostatic Water?
Benzyl alcohol is included in bacteriostatic water to act as a preservative. Its bacteriostatic properties prevent the proliferation of bacteria that might be introduced into the vial during the process of drawing out medication. This allows the remaining contents of the multi-dose vial to remain sterile for subsequent uses within a defined timeframe.
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1. https://www.drugpatentwatch.com/blog/what-is-bacteriostatic-water/