Meropenem is a carbapenem antibiotic for parenteral use . It exerts its bactericidal action by interfering with bacterial cell wall synthesis. It penetrates bacterial cell walls, its high level of stability to all serine beta-lactamases and its marked affinity for the Penicillin Binding Proteins (PBPs.). It shows potent bactericidal activity against a broad spectrum of Gram-positive and Gram-negative, aerobic and anaerobic bacteria.