NCIt definition : The pivoxil ester form of a semisynthetic, broad spectrum beta-lactam penicillin with
antibacterial activity. Amdinocillin specifically binds to and inactivates penicillin-binding
protein 2 (PBP 2) 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. This interrupts bacterial cell wall synthesis and
results in the weakening of the bacterial cell wall, eventually causing cell lysis.;