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Bacteriostatic Water Injection is a multi-dose sterile nonpyrogenic preparation of water. It is used to dissolve or dilute medications prior to injection. It comes in a multi-dose plastic vile and can be reused several times before it needs to be discarded. Bacteriostatic Water has a bacteriostatic preservative of 0.09% benzyl alcohol and is available in 25 x 30ml bottles. The benzyl alcohol helps suppresses and stops the growth of most potentially contaminating bacteria and allows repeated withdrawals to be made from a single vile.

How to use Bacteriostatic water:

Using an alcohol pad, wipe the rubber stopper on the first vial. Pull back syringe plunger until the volume of air drawn into the syringe is the same as the volume to be withdrawn from the drug vial. Without inverting the vial, insert the needle into the top of the vial, making sure that the needle's bevel tip doesn't touch the solution. Inject the air into the vial and withdraw the needle. This step replaces air in the vial, thus preventing the creation of a partial vacuum on the withdrawal of the drug. With a new needle, repeat the step above for the second vial or empty mixing vial. Then, after injecting the air into the second vial, invert the vial, withdraw the prescribed dose, and then withdraw the needle.


Adverse drug reactions, and other complications, could arise if the wrong measurements or the wrong combination of medications are prepared and administered.

Make sure the needles bevel tip does not touch the solution when you are inserting the needle.

Do not use this product for intravenous injections.

The safety and effectiveness of this product is not known for use in children.

Always mix thoroughly when mixing or dissolving drugs.

Do not use unless the solution is clear and the seal is intact.

Side Effects

Side effects occur because of;

The solution; Added drugs; or The technique of reconstitution or administration

Side effects include;

febrile response (high temperature), local tenderness, abscess, tissue necrosis or infection at the site of injection, venous thrombosis (blood clot in vein) or phlebitis (inflammation of vein) extending from the site of injection and extravasation.


Is bacteriostatic water the same as sterile water?

It is the same except it has benzyl alcohol in it, which helps prevent the growth of bacteria.


What other things do I need to use this product?

It is suggested you use alcohol pad to wipe the rubber stopper on the first vile before using. This help ensures it is clean and ready to use.


How should I store this product?

Store at 20 to 25°C (68 to 77°F).

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