Kenaytirilgan ta'sir doirasiga ega III avlod sefalosporin antibiotigi. Bakteriyalarning hujayra devori sintezini inhibe qilish orqali bakteritsid ta'sir ko‘rsatadi. Tsefpoperazon membranaga bog‘langan transpeptidazalarni atsetillaydi, bu hujayra devorining mustahkamligi va qattiqligini ta'minlash uchun zarur bo‘lgan peptidoglikanlarning o‘zaro bog‘lanishini buzadi. Gram-musbat bakteriyalarga nisbatan faoldir: Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pneumoniae, Streptococcus pyogenes, Streptococcus agalactiae, Streptococcus faecalis, β-gemolitik streptokokklar; gram-manfiy bakteriyalarga: Escherichia coli, Klebsiella spp., Enterobacter spp., Citrobacter spp., HaemophiIus influenzae, Proteus mirabiIis, Proteus vulgaris, Morganella morganii, Providencia rettgeri, Providencia spp., Serratia spp., Salmonella spp., Shigella spp., Pseudomonas aeruginosa, Acinetobacter calcoaceticus, Neisseria gonorrhoeae, Neisseria meningitidis, Bordetella pertussis, Yersinia enterocolitica. Shuningdek, anaerob mikroorganizmlarga nisbatan ham faoldir: Peptococcus spp., Peptostreptococcus spp., Veillonella spp., Clostridium spp., Eubacterium spp., Lactobacillus spp., Fusobacterium spp., Bacteroides spp. Ko‘pgina β-laktamazlarning ta'siriga chidamli.