Bacteriostatic Water 1 mL/mL (Water INJECTION, SOLUTION) 1 mL/mL

Bacteriostatic Water is primarily used as a diluent for reconstituting lyophilized pharmaceuticals and as a vehicle for intramuscular, intravenous, or subcutaneous administration. It is essential in medical settings where sterility and prolonged use of a single vial are required.

• Reconstitution of lyophilized pharmaceuticals: Bacteriostatic Water is used to dissolve powdered drugs, making them ready for injection.
• Vehicle for injectable medications: It serves as a sterile medium for diluting concentrated injectable drugs, ensuring they are properly administered.
• Multi-dose use: The preservative in Bacteriostatic Water allows for multiple withdrawals from a single vial, reducing waste and ensuring sterility.

• Bacteriostatic Water functions as a solvent and vehicle for injectable medications. It provides a sterile, isotonic medium for drug reconstitution and administration. The 0.9% benzyl alcohol in the solution acts as a bacteriostatic agent, inhibiting bacterial growth and ensuring the solution remains sterile for multiple uses. This mechanism allows healthcare providers to use a single vial for several doses, maintaining sterility and efficacy.

Bacteriostatic Water is generally well-tolerated when used as directed. However, some side effects may occur, particularly if the solution is not properly diluted or administered.

Common Side Effects

• Local irritation at the injection site: Redness, swelling, or pain may occur at the site of injection.
• Allergic reactions: Some individuals may experience allergic reactions to benzyl alcohol, including rash, itching, or difficulty breathing.
• Hypotonicity: Injecting Bacteriostatic Water intravenously by itself may cause red blood cell lysis due to its hypotonic nature.

Serious or Rare Side Effects

• Gasping syndrome in neonates: Benzyl alcohol can cause serious and fatal gasping syndrome in newborns, making it contraindicated in this population.
• Systemic infections: If the solution is not properly sterilized, it may lead to systemic infections.
• Anaphylaxis: Severe allergic reactions, although rare, can occur and require immediate medical attention.

Bacteriostatic Water should be used with caution and only as directed by healthcare professionals. It is essential to follow the manufacturer's instructions and guidelines for safe and effective use.

• Avoid use in neonates: Bacteriostatic Water is contraindicated in newborns due to the risk of gasping syndrome.
• Do not use for fluid replacement: It should not be used as a general IV fluid or for sodium chloride replacement.
• Avoid epidural or intrathecal use: Bacteriostatic Water must not be used for epidural or spinal injections.
• Ensure proper dilution: The final reconstituted solution must be approximately isotonic to prevent adverse effects.
• Store at controlled room temperature: Keep unopened vials at 20–25°C (68–77°F). Once opened, store at room temperature and use within 28 days.

Bacteriostatic Water is generally safe when used as directed, but certain interactions should be considered to ensure patient safety.

Major Interactions (Avoid)

• Neonates: Avoid use in newborns due to the risk of gasping syndrome.
• Allergic reactions: Avoid use in individuals with known allergies to benzyl alcohol.
• Epidural or intrathecal use: Avoid using Bacteriostatic Water for epidural or spinal injections.

Moderate Interactions (Monitor Closely)

• Concurrent use with other injectable medications: Monitor for signs of local irritation or allergic reactions when used with other injectable drugs.
• Use in patients with compromised immune systems: Monitor closely for signs of infection or adverse reactions.