NCIt definition : A broad-spectrum semisynthetic, ampicillin-derived ureidopenicillin antibiotic. Piperacillin
binds to penicillin binding proteins (PBP), the enzymes that catalyze the synthesis
of peptidoglycan, a critical component of the bacterial cell wall. This blockade leads
to the interruption of cell wall synthesis, consequently, leading to bacterial cell
growth inhibition and cell lysis.;