NCIt definition : The hydrochloride salt of a semi-synthetic, beta-lactamase-resistant, fourth-generation
cephalosporin antibiotic derived from an Acremonium fungal species with broad-spectrum
bactericidal activity. Administered parenterally, cefepime inhibits bacterial cell
wall synthesis by binding to and inactivating penicillin-binding proteins (PBP) located
on the inner membrane of the bacterial cell wall. Inactivation of PBPs interferes
with the cross-linkage of peptidoglycan chains necessary for bacterial cell wall strength
and rigidity, resulting in a reduction of bacterial cell wall stability and cell lysis.
This agent is more active against a variety of Gram-positive pathogens compared to
third-generation cephalosporins.;