What Is The Drug Zosyn Used To Treat?

What Is The Drug Zosyn Used To Treat? Piperacillin/tazobactam is used to treat a wide variety of bacterial infections. It is a penicillin antibiotic. It works by stopping the growth of bacteria. What kind of infections does Zosyn treat? a bacterial infection. presumed infection in neutropenic patient with fever. bacterial pneumonia caused by Haemophilus influenzae.