Piperacillin/tazobactam
（重定向自Zosyn）
Piperacillin/tazobactam is a combination antibiotic containing the extended-spectrum penicillin antibiotic piperacillin and the β-lactamase inhibitor tazobactam. It is commercially available as Tazocin (Canada, UK, Australia and New Zealand, Italy, marketed by Pfizer), and Zosyn (U.S., by Pfizer inc) as well as a generic drug. The combination has activity against many Gram-positive and Gram-negative pathogens and Pseudomonas aeruginosa.