Cefsulodine sodium

Cefsulodin sodium salt hydrate is a third generation β lactam antibiotic and member of the cephems subgroub of antibiotics.(In Vitro):Cefsulodin sodium (0.5-64 mg/mL; 18 h) is active in minimum inhibitory concentrations (MICs) of 0.5-64 mg/mL, is about 16- to 32-fold more active than Carbenicillin (HY-B0525) against Psuedomonas aeruginosa.Cefsulodin sodium (8-16 μg/mL; 4.5 h) is not hydrolyzed by the beta-lactamase induced in P. aeruginosa by growth in the presence of benzylpenicillin.(In Vivo):Cefsulodin sodium (1 g/kg/tag; i.p.; 5 d, 9 single doses with intervals of 12 h) shows a increasing excretion of tubule cells in the rat, as a measure of nephrotoxicity, and displays tubule toxic threshold doses of 250 mg/kg (s.c.; 12 d) with nine single doses.