Comparing Unasyn vs Zosyn
| Unasyn (ampicillin / sulbactam) | Zosyn (piperacillin / tazobactam) |
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| Unasyn (ampicillin / sulbactam) | Zosyn (piperacillin / tazobactam) |
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Prescription only
Prescribed for Bacterial Infection, Bone infection, Aspiration Pneumonia, Deep Neck Infection, Endocarditis, Epiglottitis, Intraabdominal Infection, Joint Infection, Kidney Infections, Meningitis... View more |
Prescription only
Prescribed for Bacteremia, Aspiration Pneumonia, Appendicitis, Appendectomy, Bone infection, Deep Neck Infection, Endometritis, Febrile Neutropenia, Intraabdominal Infection, Joint Infection, Kidney... View more |
Related suggestions Urinary Tract Infection
Skin or Soft Tissue Infection
Kidney Infections (Pyelonephritis)
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| More about Unasyn (ampicillin / sulbactam) | More about Zosyn (piperacillin / tazobactam) | ||||||||
| Ratings & Reviews | |||||||||
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Unasyn has an average rating of 8.0 out of 10 from a total of 2 ratings on Drugs.com. 50% of reviewers reported a positive effect, while 0% reported a negative effect. |
Zosyn has an average rating of 8.0 out of 10 from a total of 5 ratings on Drugs.com. 60% of reviewers reported a positive effect, while 0% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||
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View all Unasyn side effects |
View all Zosyn side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
| Lower cost generic approved | |||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||
View all Unasyn prices |
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
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| Dosage Forms | |||||||||
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| Brand Names | |||||||||
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N/A |
N/A |
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| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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1.5 hours |
3.6 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||
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Category B
No proven risk in humans
See the full pregnancy warnings document. |
Category B
No proven risk in humans
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 81 drugs are known to interact with Unasyn:
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A total of 78 drugs are known to interact with Zosyn:
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| Disease Interactions | |||||||||
| First Approval Date | |||||||||
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December 31, 1986 |
October 22, 1993 |
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| WADA Class View classifications | |||||||||
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N/A |
N/A |
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| More Information | |||||||||
| Patient Resources | |||||||||
| Professional Resources | |||||||||
| Related Treatment Guide | |||||||||
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1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.