Bacteriostatic Sterile Water for Injection, 30ml, Vial

$12.99$23.99 (-20%)

Bacteriostatic Water for Injection is sterile, non-pyrogenic water that contains 0.9% benzyl alcohol (9mg/mL) added as a bacteriostatic preservative. This preparation of sterile water and benzyl alcohol (BnOH) allows repeated withdrawals to be made from a single 30mL plastic vial. Hospira, the world’s leading manufacturer and supplier of bacteriostatic and sterile water, advises that once a vial of bacteriostatic water is open, the preservatives will prolong its life for up to 28 days. After this period, the vial should be discarded.

The difference between bacteriostatic water and sterile water is that other sterile waters for injection do not contain a bacteriostatic agent. As such, they are single-dose vials and should be discarded after a single use.


(max file size 50 MB)

Compare Report Abuse

Bacteriostatic Water for Injection, USP is a sterile, non-pyrogenic, sterile water that contains 0.9% benzyl alcohol (9mg/mL) added as a bacteriostatic preservative. Bacteriostatic water can be used multiple times up to 28 days once opened. Pfizer recommends that after this time you must discard the vial. This preparation of sterile water and benzyl alcohol (BnOH) allows repeated withdrawals to be made from a single 30mL vial. Hospira Worldwide now Pfizer injectables is the world’s leading manufacturer of bacteriostatic water, Pfizer injectables recommends that once the vial of bacteriostatic water is open the preservatives will prolong its life for up to 28 days and that after this period of time the vial should to be discarded.

A bacteriostatic agent or bacteriostat is a biological or chemical agent that stops bacteria from reproducing, while not necessarily killing them otherwise. Depending on their application, bacteriostatic antibiotics, disinfectants, antiseptics and preservatives can be distinguished. When bacteriostatic antimicrobials are used, the duration of therapy must be sufficient to allow host defense mechanisms to eradicate the bacteria. Upon removal of the bacteriostat, the bacteria usually start to grow again. This is in contrast to bactericides, which kill bacteria.

How to Mix medications with Bacteriostatic water:

  • Using an alcohol pad, wipe the rubber stopper on the first vial to decrease the risk of contaminating the medication as you insert the needle into the vial.
  • Pull back syringe plunger until the volume of air drawn into the syringe equals 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 (as shown below).
nurse drawing medication from bacteriostatic water vial
  • Wipe the rubber stopper of the first vial again and insert the needle, taking care not to depress the plunger. Invert the vial, withdraw the prescribed dose, and then withdraw the needle.
  • Change the needle on the syringe, if indicated.
  • Last, discard all waste in appropriate sharps container of waste receptacle.


Complications, such as adverse drug reaction, may occur if an incorrect dose of medication is prepared or incompatible medications are mixed and administered.

What is Bacteriostatic Water?

Bacteriostatic Water for Injection is sterile non-pyrogenic water that contains 0.9% benzyl alcohol (9mg/mL), which is added as a bacteriostatic preservative. This preparation of sterile water and benzyl alcohol (BnOH) allows repeated withdrawals to be made from a single 30mL plastic vial. Hospira, the world’s leading manufacturer and supplier of bacteriostatic and sterile water, recommends that once a vial of bacteriostatic water is open the preservatives will prolong its life for up to 28 days and that after this period of time the vial should to be discarded. Other sterile waters for injection without the bacteriostatic agent (single-dose vials) should be discarded after a single use. Visit our page to purchase online at wholesale supply prices.

The semi-rigid vial is fabricated from a specially formulated polyolefin. It is a copolymer of ethylene and propylene. The safety of the plastic has been confirmed by tests in animals according to USP biological standards for plastic containers. The container requires no vapor barrier to maintain the proper labeled volume.

Sterile Bacteriostatic water is a multi-dose sterile water for injectionused for diluting medications prior to injection. Bacteriostatic water is packaged in a multiple dose plastic vial that can be reused several times before needing to discard. Bacteriostatic water for injection contains 0.9% of benzyl alcohol as a bacteriostatic preservative. Benzyl alcohol suppresses or stops the growth of most potentially contaminating bacteria. Benzyl alcohol, is safe to us and is naturally made by many plants and is commonly found in fruits, teas and essential oils like jasmine. This bacteriostatic water has a pH level of 5.7 (4.5 to 7.0) and is safely packaged in a fabricated semi-rigid vial specially formulated with copolymer of ethylene and propylene. The safety of the plastic has been confirmed by tests in animals according to USP biological standards for plastic containers. The container requires no vapor barrier to maintain the proper label volume. This product is not to be used in neonates.

Bacteriostatic Water MSDS Sheets

Hospira Catalog

Precautions before Using:Do not use Bacteriostatic Water for Injection, USP for intravenous injection unless the osmolar concentration of additives results in an approximate isotonic admixture.

Consult the manufacturer’s instructions for choice of vehicle, appropriate dilution or volume for dissolving the drugs to be injected, including the route and rate of injection.

Inspect reconstituted (diluted or dissolved) drugs for clarity (if soluble) and freedom from unexpected precipitation or discoloration prior to administration.

Pregnancy Category C. Animal reproduction studies have not been conducted with Bacteriostatic Water for Injection. It is also not known whether Bacteriostatic Water for Injection containing additives can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Bacteriostatic Water for Injection, USP containing additives should be given to a pregnant woman only if clearly needed.

Pediatric Use

The safety and effectiveness of Bacteriostatic Water for Injection, USP have not been established in pediatric patients. Due to the potential for toxicity, solutions containing benzyl alcohol should not be used in neonates.

Drug Interactions

Some drugs for injection may be incompatible in a given vehicle, or when combined in the same vehicle or in a vehicle containing benzyl alcohol. Consult with pharmacist, if available.

Use aseptic technique for single or multiple entry and withdrawal from all containers.

When diluting or dissolving drugs, mix thoroughly and use promptly.

Do not store reconstituted solutions of drugs for injection unless otherwise directed by the manufacturer of the solute.

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

ADVERSE REACTIONSReactions which may occur because of this solution, added drugs or the technique of reconstitution or administration include febrile response, local tenderness, abscess, tissue necrosis or infection at the site of injection, venous thrombosis or phlebitis extending from the site of injection and extravasation.

If an adverse reaction does occur, discontinue the infusion, evaluate the patient, institute appropriate countermeasures, and if possible, retrieve and save the remainder of the unused vehicle for examination.

Although adverse reactions to intravenous, intramuscular or subcutaneous injection of 0.9% benzyl alcohol are not known to occur in man, experimental studies of small volume parenteral preparations containing 0.9% benzyl alcohol in several species of animals have indicated that an estimated intravenous dose up to 30 mL may be safely given to an adult without toxic effects. Administration of an estimated 9 mL to a 6 kg infant or neonate is potentially capable of producing blood pressure changes.

DOSAGE AND ADMINISTRATIONThe volume of the preparation to be used for diluting or dissolving any drug for injection is dependent on the vehicle concentration, dose and route of administration as recommended by the manufacturer.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit Instructions for Use: First examine vial appearance. Make sure sterile bacteriostatic water inside is clear and seal is intact and undamaged. Purple plastic flip top helps protect rubber injection entry site.
Swab top of rubber injection site with antiseptic wipe containing 70% isopropyl alcohol or higher to reduce any existing bacteria growth. Wait until alcohol is dry before continuing.

Next, using a sterile syringe and wearing sterile examination gloves, draw the exact dose of sterile water from the vial and carefully injected it into an empty vial to prepare for mixing. Mix thoroughly with desired drug and use promptly after mixing.
After the first time the water is used, label the vial with date and time to ensure preservative integrity (25-28 days once opened). Store at 20 to 25 Celsius (68 to 77 degrees Fahrenheit).

How long does it last once it’s opened? Hospira recommends that once a vial open you have up to 28 days to use it. After 28 days the vial needs to be discarded. Sterile water for injection without benzyl alcohol added (single-dose vials) should be discarded after one single use. Sterile Water for injection is single-dose sterile water that does not contain any Bacteriostatic, antimicrobial agents, and added buffers.Store: 20° to 25°C (68 to 77°F) Not for use in neonates. See package label for additional warnings and precautions prior to use. Not recommended on neonates because on the toxicity of the preservative benzyl alcohol. Bacteriostatic water.

Shipping Countries: United States (US)

Shipping States: Utah (United States (US)), Colorado (United States (US)), Louisiana (United States (US)), New Mexico (United States (US)), Minnesota (United States (US)), Nevada (United States (US)), Oklahoma (United States (US)), Armed Forces (AP) (United States (US)), South Dakota (United States (US)), Alabama (United States (US)), Wisconsin (United States (US)), Florida (United States (US)), Iowa (United States (US)), Vermont (United States (US)), Connecticut (United States (US)), Maryland (United States (US)), North Carolina (United States (US)), Idaho (United States (US)), Kentucky (United States (US)), Missouri (United States (US)), New Hampshire (United States (US)), Oregon (United States (US)), Tennessee (United States (US)), Arkansas (United States (US)), Wyoming (United States (US)), North Dakota (United States (US)), Armed Forces (AE) (United States (US)), Rhode Island (United States (US)), Washington (United States (US)), District Of Columbia (United States (US)), Illinois (United States (US)), Massachusetts (United States (US)), Montana (United States (US)), California (United States (US)), South Carolina (United States (US)), West Virginia (United States (US)), New York (United States (US)), Kansas (United States (US)), Mississippi (United States (US)), Delaware (United States (US)), Armed Forces (AA) (United States (US)), Texas (United States (US)), Nebraska (United States (US)), Ohio (United States (US)), Maine (United States (US)), Arizona (United States (US)), Georgia (United States (US)), Virginia (United States (US)), New Jersey (United States (US)), Pennsylvania (United States (US)), Indiana (United States (US)), Michigan (United States (US))

Ready to ship in 1-3 business days


Shipping Policy

Effective Jan. 17, 2022​

On Jan. 17, 2022, the money-back guarantee was reinstated for select FedEx Express® services for U.S. domestic and U.S. export shipments. Services include:

FedEx First Overnight®
FedEx Priority Overnight®
FedEx Standard Overnight®
FedEx First Overnight Extra Hours*
FedEx Priority Overnight Extra Hours*
FedEx Standard Overnight Extra Hours*
FEDEX link here:

In order to balance our focus on service and safety, the FedEx money-back guarantee for all other FedEx Express, FedEx 2day, FedEx Ground®, FedEx Freight®, and FedEx Office® services will remain suspended until further notice.

The status of the money-back guarantee for these FedEx services and additional FedEx services worldwide is being evaluated on an ongoing basis, and our focus remains on continuing to provide the best possible service to our customers during this period of uncertainty.

Expedited order's during the pandemic are no longer guaranteed to ship the same day and in some cases due to extreme demand are now taking 1-3 business days. When you choose this option you are consenting to the time frame. Thank you, Management.

Expedited orders that are delivered late or delayed will be refunded in accordance with delivery. Customer will be responsible for for any standard shipping rates and any expediated charges will be refunded.

Products will be shipped per the method chosen at checkout from New York within 1 to 5 business days from the date that the order was placed (subject to stock & availability).

If a product is needed by a specific date, please call to ensure the product is in stock. Toll Free 1-888-687-4334.

All Aerosol products are considered hazmat and can not be shipped FEDEX AIR

All Weekends and Holidays will not be counted as delivery days.

The warehouse closes at 3:30pm EST to allow for carrier pickup. Any expedited orders placed after that time are not guaranteed same day shipping.

All expedited shipments will require a signature for liability purposes.

Expedited shipments are delivered on Business Days only. Example: An Overnight order placed after 3:30 on a Thursday will ship Friday and be received on Monday. Expedited shipments are considered as, Fedex Express Saver, Fedex 2day, Fedex Overnight, Ups 3 day select, Ups 2nd Day Air, and UPS Overnight ONLY!

FEDEX Ground is not considered Expedited and will ship in the normal 1-4 business day time frame. Choosing this method however will ensure that we do not ship it FEDEX or UPS Smartpost. (5-9 day shipping time frame)

Saturday delivery is not offered online as FEDEX & UPS do not delivery on Saturdays to all locations. Please call for a Saturday delivery quote.

PO Boxes: Order's that have a PO Box listed as the shipping address and request FEDEX/UPS expediated with be sent USPS priority mail. Fedex & UPS will not deliver to a PO Box.

Refused/undeliverable: For any and all shipments that are shipped by any carrier that are refused or returned undeliverable, a minimum $15.00 return fee will be applied to any refund issued. Other other fees associated with the return will be deducted from any refund due.

Free shipping applies only to the continental US for order totals $99 and over. For all other areas, applicable shipping costs will be added. Orders will be delivered in 2-9 Business days when this method is chosen. If the items can not arrive in that time frame you will be notified. We reserve the right to send multiple shipments from multiple locations and shipping information will be updated when the applicable reports are updated. 24-72 hours.

Shipping cost is calculated & determined by size and weight. Please place the items in your cart and enter your address to calculate shipping. (Free over $99)

Shipping Address Correction: All packages that need the address updated or rerouted there is a minimum $15 FEDEX fee. Charges be be based on the nature of the routing. USPS packages can not be rerouted.

Standard shipping will be shipped the best way possible via USPS, FEDEX or UPS. It starts at $4.99 and goes up from there depending on size, weight & location. This method can take 2-9 business days for delivery depending on location.

Manufacture Direct- Some items listed on the website are shipped directly from the manufacture and have processing times of 24-72 hours. Expedited order shipping times can not be promised. We will contact you and make you aware of any delays but please call before placing an order to ensure delivery time.

Pharmaceutical items can take up to 24 hours to complete and ship. Please call to ensure shipping and delivery date.

Shipping errors and discrepancies will be refunded due to the nature of the problem at Mountainside Medical's discretion. (Example, customer pays for overnight shipping and FedEx incurs a problem and the package arrives in 2 days. We will refund the difference between overnight and 2 day shipping)

Mountainside is not responsible for packages left in extreme climate temperatures. ( Hot or Cold) It is the customers responsibility to ensure pickup after delivery.

Lost/Stolen Packages: In the event that your package is lost or stolen, Mountainside will take the proper steps to investigate it. We will file a claim with Fedex/USPS and start a tracer. This can sometimes take 5-7 business days to complete.

International Shipping Policy: Due to tariffs, taxes, brokerage and border fees Mountainside Medical is not responsible for any package that is shipped outside of the United States including Canada. Any returned shipments or fee's charged to us will be deducted from the refund due.

All shipments are discretely and safely packaged.

For More Information on FEDEX overnight delivery polices see :


Refund Policy

Update 3/1/2020: DUE TO COVID-19 we can not accept any opened or used medical devices and equipment for the safety of our workers. Sorry for the inconvenience.

On all product returns, you are responsible for arranging shipment of the product back to the appropriate Mountainside Medical warehouse. You may use UPS, FedEx or USPS.

If using USPS please mail the product back to:

Mountainside Medical Returns

Po Box 247

Marcy, NY 13403

If using FEDEX or UPS please return to

Mountainside Medical Returns

9262 Old River Rd

Marcy, NY 13403

Please include receipt/order number and reason for the return

Products must be unopened due to regulations from the department of health. All medical products are to be sold in the original packaging and cannot be repackaged.

All products to be returned must be returned within 30 days from the invoice date, 100% complete, in resalable condition, and must include original packing material, manuals, blank warranty cards and other accessories provided by the manufacturer.

All returns authorized by are subject to a restocking fee of 25%, and must be completed within 30 days of the date of invoice/Sales receipt.

Due to manufacturers' return policies, Braces, Splints, Sammon Preston Products, Don Joy, and other custom equipment may be returned to Mountainside Medical for repairs only -no refunds or exchanges can be made at any time.

Scrotal Supports are non returnable.

Medical Equipment past the return grace period (30 days) can only be exchanged or repaired under warranty.

Products that are non returnable and shipped back to us will be discarded.

Shipping is non refundable.

Additional information

Weight N/A

Single, 2-Pack

Be the first to review “Bacteriostatic Sterile Water for Injection, 30ml, Vial”

This site uses Akismet to reduce spam. Learn how your comment data is processed.


There are no reviews yet.

Vendor Information

Product Inquiry

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy

Main Menu

Bacteriostatic Sterile Water for Injection, 30ml, Vial

$12.99$23.99 (-20%)

Add to Cart