Piperacillin + Tazobactam is a combination antibiotic used to treat serious bacterial infections, including infections caused by beta-lactamase producing bacteria.

Piperacillin is a broad-spectrum antibiotic that inhibits bacterial cell wall synthesis, leading to bacterial death.

Tazobactam is a beta-lactamase inhibitor that prevents the breakdown of Piperacillin by bacterial enzymes, extending its spectrum of activity.