라타목세프

라타목세프 MSDS

• Latamoxef

라타목세프 화학적 특성, 용도, 생산

• 용도

  Latamoxef is an oxacephem antibiotic usually grouped with the cephalosporins. An anti-bacterial agent.

• 정의

  ChEBI: A broad-spectrum oxacephem antibiotic in which the oxazine ring is substituted with a tetrazolylthiomethyl group and the azetidinone ring carries methoxy and 2-carboxy-2-(4-hydroxyphenyl)acetamido substituents.

• World Health Organization (WHO)

  Latamoxef, a cefamycin antibiotic, was introduced in 1982 for the treatment of serious infections. Its use has subsequently been associated with reports of clinically important haemorrhage, sometimes fatal, and in some countries routine co-administration of vitamin K is advised to minimize this risk.

• Antimicrobial activity

  Moxalactam. A semisynthetic 7-methoxyoxacephem, supplied as the disodium salt.It is generally slightly less active than cefotaxime, especially against Staph. aureus, but unlike other group 4 cephalosporins it exhibits fairly good activity against B. fragilis. Other Bacteroides spp. are generally less susceptible. The 7-methoxy substitution, also found in cephamycins such as cefoxitin, confers resistance to hydrolysis by a wide range of β-lactamases including those of Staph. aureus, various enterobacteria and B. fragilis. Resistance, predominantly in Enterobacter spp., Ps. aeruginosa and Ser. marcescens due to induction of chromosomal enzymes, has been found in vitro and in some patients.
  A 500 mg intramuscular injection achieves a serum concentration of 12–22 mg/L after 1.2 h. Infusion of 1 g over 30 min results in a concentration of 60 mg/L. The plasma half-life is c. 2 h and plasma protein binding 40–50%. There is reasonably good penetration into serous fluids, the concentration in ascitic fluid reaching 75% and in pleural fluid 50% of the concentration simultaneously present in the serum. Levels of 5–35 mg/L have been obtained in inflamed meninges. Sputum levels are of the order of 2 mg/L following 1 g of the drug intravenously.
  Renal elimination accounts for 90% of the clearance, but significant concentrations are found in the feces. Excretion is depressed in renal failure. Hemodialysis removes 48–51% of the drug in 4 h; peritoneal dialysis has little or no effect.
  Increased bleeding and decreases in platelet function associated with the methylthiotetrazole side chain are sufficiently common to have been cited as reasons for restricting use of the agent. Use is contraindicated in patients on anticoagulant therapy. Uses are similar to those of group 4 cephalosporins. It is generally less successful in the treatment of infections due to Gram-positive organisms.

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