Ertapenem

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

Ertapenem 화학적 특성, 용도, 생산

• 개요

  Ertapenem 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.

• 용도

  Ertapenem 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.

• 정의

  ChEBI: Meropenem in which the one of the two methyl groups attached to the amide nitrogen is replaced by hydrogen while the other is replaced by a 3-carboxyphenyl group. The sodium salt is used for the treatment of moderate to severe susceptible infections includ ng intra-abdominal and acute gynaecological infections, pneumonia, and infections of the skin and of the urinary tract.

• Antimicrobial activity

  Activity against aerobic and anaerobic pathogens is comparable to that of imipenem: MIC values for Gramnegative bacilli (with the exception of Ps. aeruginosa) are generally lower and those for Gram-positive cocci higher.
  Ertapenem is stable to most serine β-lactamases, but is hydrolyzed by serine carbapenemases and metallo- β-lactamases.

• 일반 설명

  Ertapenem (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.

• Pharmacokinetics

  C_max 1 g intramuscular: c. 67 mg/L after 2 h
  1 g intravenous infusion (30 min): c. 155 mg/L end infusion
  Plasma half-life: c. 4 h
  Volume of distribution: c. 0.12 L/kg (steady state)
  Plasma protein binding: 85–95%
  Absorption after intramuscular injection is essentially complete with 90% bioavailability. The modestly extended plasma half-life allows once-daily dosing.
  Excretion is predominantly by the renal route, about 80% being recovered in the urine within 24 h. About 40% is eliminated unchanged, the rest as a biologically inactive ringopened metabolite. Dosage should be reduced in severe renal impairment.

• Clinical Use

  Complicated intra-abdominal infections
  Complicated skin and skin structure infections, including diabetic foot
  infections without osteomyelitis
  Community acquired pneumonia
  Complicated urinary tract infections including pyelonephritis
  Acute pelvic infections including postpartum endomyometritis, septic
  abortion and postsurgical gynecologic infections
  Prophylaxis of surgical site infection following elective colorectal surgery

• 부작용

  Ertapenem appears to be generally well tolerated. The most common drug-related adverse experiences are diarrhea (5.5%), infused vein complication (3.7%), nausea (3.1%), headache (2.2%), vaginitis (2.1%), phlebitis/thrombophlebitis (1.3%) and vomiting (1.1%). Seizures have occasionally been reported (0.5%) in patients with a history of disorders of the CNS.

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