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Piperacillin/tazobactam is a combination antibiotic containing the extended-spectrum penicillin antibiotic piperacillin and the β-lactamase inhibitor tazobactam. The combination has activity against many Gram-positive and Gram-negative pathogens and Pseudomonas aeruginosa.
Its main uses are in intensive care medicine (pneumonia, peritonitis), some diabetes-related foot infections, and empirical therapy infebrile neutropenia (e.g., after chemotherapy). The drug is administered intravenously every 6 or 8 hr, typically over 30 min. It may also be administered by continuous infusion over four hours. Prolonged infusions are thought to maximize the time that serum concentrations are above the minimum inhibitory concentration (MIC) of the bacteria implicated in infection.
The most common adverse reaction is diarrhea (7% to 11%), One study showed Clostridium difficile-associated diarrhea happened in 4.9% of the patients on piperacillin/tazobactam. One other side effect is inhibition of platelets (thrombocytopenia)
Appendicitis, peritonitis, pelvic inflammatory disease, Community-acquired pneumonia, Nosocomial pneumonia