Answer
No. Ceftolozane is a cephalosporin antibiotic; tazobactam is a beta-lactamase inhibitor structurally related to penicillins.
Sources for this answer
- Zerbaxa 1 g/0.5 g powder for concentrate for solution for infusion — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.