Cefoperazone is a third generation cephalosporin that acts on sensitive microorganisms during their active propagation by inhibiting the biosynthesis of the cell wall mucopeptide. Sulbactam does not have clinically significant antibacterial activity (except for Neisseriaceae and Acinetobacter), is an irreversible inhibitor of most major beta-lactamases that produce microorganisms resistant to beta-lactam antibiotics. Sulbactam also binds to some penicillin-binding proteins, so the combination of cefoperazone and sulbactam often has a more pronounced effect on sensitive strains than one cefoperazone.
The combination of sulbactam and cefoperazone is active against all microorganisms sensitive to cefoperazone. In addition, it has a synergistic effect on various microorganisms, primarily: Haemophilus influenzae, Bacteroides spp., Staphylococcus spp., Acinetobacter calcoaceticus, Enterobacter aerogenes, Escherichia coli, Proteus mirabilis, Klebsiella pneumoniae, Morganella morganii, Citrobacter freundii, Enterobacter cloacae, Citrobacter diversus.
Active in vitro for a wide range of clinically relevant microorganisms.
Gram-positive microorganisms:
Staphylococcus aureus (producing and not producing penicillinase), Staphylococcus epidermidis, Streptococcus pneumoniae, Streptococcus pyogenes (beta-hemolytic group streptococcus A), Streptococcus agalactiae (beta-hemolytic streptococcus group B), most other strains of beta-hemolytic streptococci, Streptococcus faecalis.
Gram-negative microorganisms:
Klebsiella spp., Enterobacter spp., Citrobacter spp., Proteus vulgaris, Providencia rettgeri, Providencia spp., Serratia spp. (including S. marcescens), Salmonella spp., Shigella spp., Pseudomonas aeruginosa, Neisseria gonorrhoeae, Neisseria meningitidis, Bordetella pertussis, Yersinia enterocolitica.
Anaerobic microorganisms z Bacteroides fragilis, Fusobacterium spp., Peptococcus spp., Peptostreptococcus spp., Veillonella spp., Clostridium spp., Eubacterium spp., Lactobacillus spp.