Ertapenem

개요Ertapenem is another synthetic carbapenem with a rather complex side chain at C-3. It is used once daily parenterally, with special application against anaerobes. As with meropenem, the 4-β-methyl group confers stability toward dehydropeptidase-1 It is not active against pseudomonads or acinetobacteria and, therefore, should not be substituted for imipenem or meropenem. It is relatively strongly bound to serum proteins, so it has a prolonged half-life, making it more convenient to use than the other carbapenems when its spectrum warrants this. Its reported indications include complicated intra-abdominal and complicated skin/skin structure infections caused by sensitive organisms (for intra-abdominal: Escheri chia coli, Clostri di um clostri doforme, Bacteroi des fragilis, and Peptostreptococcus sp; for skin/skin structures: Staphylococcus aureus (methicillin-susceptible strains), Streptococcus pyogenes, E.coli, or Peptostreptococcus sp.). It can be administered once daily.

용도Ertapenem is a long-acting parenteral cabapenem. Ertapenem has bactericidal activity against a variety of gram-negative pathogens, some gram positive strains, and Haemopilus influenzae. Ertapenem has shown to inactivate L,D-transpeptidase, an enzyme responsible for in vitro cross-linking of Mycobacterium tuberculosis peptidoglycan.

일반 설명Ertapenem (Invanz, for injection) is a synthetic 1-β-methylcarbapenem that is structurally related to β-lactam antibiotics,particularly the thienamycin group. Its mechanism ofaction is the same as that of other β-lactam antibiotics. Thestructure resists β-lactamases and dehydropeptidases.Ertapenem is indicated for the treatment of moderate tosevere infections caused by susceptible strains causing complicatedintra-abdominal infections such as Escherichia,Clostridium, Peptostreptococcus, and Bacteroides. Theantibiotic is also indicated for complicated skin and skinstructure infections including diabetic foot infections (withoutosteomyelitis). Treatable strains include Staphylococcus(MSSA), Streptococcus, Escherichia, Klebsiella, Proteus,and Bacteroides. Ertapenem is also indicated for community-acquired pneumonia caused by S. pneumoniae,Haemophilus infljuenzae, and M. catarrhalis. Complicatedurinary tract infections and acute pelvic infections round outthe indications for ertapenem.