In vitro activity and beta-lactamase stability of cefodizime, an aminothiazolyl iminomethoxy cephalosporin.
Cefodizime, an iminomethoxy aminothiazolyl cephalosporin similar to moxalactam and ceftazidime, was less active (minimal inhibitory concentration, 1.6 to 12 micrograms) than cefazolin or cefotaxime against Staphylococcus aureus and Staphylococcus epidermidis. It inhibited Haemophilus and Neisseria spp. at less than 0.5 microgram/ml. It did not inhibit methicillin-resistant staphylococci, enterococci, or Listeria spp. and was 8- to 32-fold less active than cefotaxime, moxalactam, or ceftazidime against Escherichia coli, Citrobacter spp., Klebsiella pneumoniae, Providencia spp., and Serratia spp. Cefotaxime-resistant Enterobacter cloacae, Citrobacter freundii, and Proteus vulgaris were resistant to cefodizime. Cefodizime was less active than cefoxitin or moxalactam against Bacteroides fragilis. Cefodizime was not hydrolyzed by common plasmid or chromosomal beta-lactamases, and it inhibited type I beta-lactamases.[1]References
- In vitro activity and beta-lactamase stability of cefodizime, an aminothiazolyl iminomethoxy cephalosporin. Scully, B.E., Jules, K., Neu, H.C. Antimicrob. Agents Chemother. (1983) [Pubmed]
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