sentences:  Cefoxitin is a beta-lactam antibiotic which binds to penicillin binding proteins, or transpeptidases.By binding to PBPs, cefoxitin prevents the PBPs from forming the cross-linkages between the peptidoglycan layers that make up the bacterial cell wall, thereby interfering with cell wall synthesis.It is a strong beta-lactamase inducer, as are certain other antibiotics (such as imipenem).