(ampicillin sodium, sulbactam sodium PHARMACY BULK PACKAGE)
HOW SUPPLIED
HOW SUPPLIED
UNASYN (ampicillin and sulbactam) for injection, USP, a sterile off-white dry powder, is available in Pharmacy Bulk Package:
Vials containing 15 g (ampicillin 10 g and sulbactam 5 g) NDC 0049-0024-28 (contains one of NDC 0049-0024-28).
Vials containing 15 g (ampicillin 10 g and sulbactam 5 g) NDC 0049-1515-02 (contains one of NDC 0049-1515-01).
OTHER SIZE PACKAGES AVAILABLE
UNASYN is also supplied in glass vial in the following package sizes:
Carton of 10 single-dose vials containing 1.5 g (ampicillin 1 g and sulbactam 0.5 g) NDC 0049-0013-83 (10 of NDC 0049-0013-81).
Carton of 10 single-dose vials containing 1.5 g (ampicillin 1 g and sulbactam 0.5 g) NDC 0049-0710-10 (10 of NDC 0049-0710-01).
Carton of 10 single-dose vials containing 3 g (ampicillin 2 g and sulbactam 1 g) NDC 0049-0014-83 (10 of NDC 0049-0014-81).
Carton of 10 single-dose vials containing 3 g (ampicillin 2 g and sulbactam 1 g) NDC 0049-3003-10 (10 of NDC 0049-3003-01).
To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or http://www.fda.gov/ for voluntary reporting of adverse reactions.
This product's labeling may have been updated. For the most recent prescribing information, please visit www.pfizer.com.
Rx only
LAB-0018-26.0
Revised November 2025
Additional Resources
Chat online with Pfizer Medical Information regarding your inquiry on a Pfizer medicine or vaccine.
Speak with a Pfizer Medical Information Professional regarding your Pfizer medicine or vaccine inquiry.
Available 9AM-5PM ET Monday to Friday; excluding holidays.
Submit a medical question for a Pfizer medicine or a vaccine.
The submission will be reviewed during our standard business hours.
To report an adverse event related to a Pfizer product and you are not part of a clinical trial* for this medication, click the link below to submit your information:
Pfizer Safety Reporting Site
*If you are involved in a clinical trial for either product, adverse events should be reported to your coordinating study site.
If you cannot use the above website to report an adverse event related to a Pfizer medication, please call (800) 438-1985.
You may also contact the U.S. Food and Drug Administration (FDA) directly to report adverse events or product quality concerns either online at www.fda.gov/medwatch or by calling (800) 332-1088.