ATC Group: J01DH Carbapenems

Doripenem is a synthetic carbapenem antibacterial agent. Doripenem exerts its bactericidal activity by inhibiting bacterial cell wall biosynthesis. Doripenem inactivates multiple essential penicillin-binding proteins (PBPs) resulting in inhibition of cell wall synthesis with subsequent cell death.

Ertapenem inhibits bacterial cell wall synthesis following attachment to penicillin binding proteins (PBPs). In Escherichia coli, affinity is strongest to PBPs 2 and 3.

Imipenem is a semi-synthetic derivative of thienamycin, the parent compound produced by the filamentous bacterium Streptomyces cattleya. Imipenem exerts its bactericidal activity by inhibiting bacterial cell wall synthesis in Gram-positive and Gram-negative bacteria through binding to penicillin-binding proteins (PBPs).

Imipenem, also referred to as N-formimidoyl-thienamycin, is a semi-synthetic derivative of thienamycin, the parent compound produced by the filamentous bacterium Streptomyces cattleya. Imipenem exerts its bactericidal activity by inhibiting bacterial cell wall synthesis in Gram-positive and Gram-negative bacteria through binding to penicillin-binding proteins (PBPs). Cilastatin sodium is a competitive, reversible and specific inhibitor of dehydropeptidase-I, the renal enzyme which metabolizes and inactivates imipenem. It is devoid of intrinsic antibacterial activity and does not affect the antibacterial activity of imipenem.

The bactericidal activity of imipenem results from the inhibition of penicillin binding proteins (PBPs) leading to inhibition of peptidoglycan cell wall synthesis. Cilastatin limits the renal metabolism of imipenem and does not have antibacterial activity. Relebactam is a non-beta lactam inhibitor of Ambler class A and class C beta-lactamases, including class A Klebsiella pneumoniae carbapenemase (KPC) and extended-spectrum beta-lactamases (ESBLs), and class C (AmpC-type) beta-lactamases including Pseudomonas-Derived Cephalosporinase (PDC). Relebactam does not inhibit class B enzymes (metallo-beta-lactamases) or class D carbapenemases. Relebactam has no antibacterial activity.

Meropenem exerts its bactericidal activity by inhibiting bacterial cell wall synthesis in Gram-positive and Gram-negative bacteria through binding to penicillin-binding proteins (PBPs).

Meropenem exerts bactericidal activity by inhibiting peptidoglycan cell wall synthesis as a result of binding to and inhibition of activity of essential penicillin-binding proteins (PBPs). Vaborbactam is a non-beta-lactam inhibitor of class A and class C serine beta-lactamases, including Klebsiella pneumoniae carbapenemase, KPC. It acts by forming a covalent adduct with beta-lactamases and is stable to beta-lactamase-mediated hydrolysis.