IV/IM Adult 2-4 g/day (ie, 1-2 g/day each) in equally divided doses every 12 hr.
Severe or refractory infections May be increased up to 8 g (ie, 4 g/day each) in equally divided doses every 12 hr. Max dose: Sulbactam 4 g daily (8 g of the combination).
Childn 40-80 mg/kg/day (20-40 mg/kg/day each) every 6-12 hr.
Serious or refractory infections May be increased up to 240 mg/kg/day (160 mg/kg/day cefoperazone activity) administered in 2-4 equally divided doses.
Neonate up to 1 wk Max daily dose: Not to exceed sulbactam 80 mg/kg/day every 12 hr.
Renal impairment CrCl 15-30 mL/min Max: Sulbactam 1 g every 12 hr,
<15 mL/min Max: Sulbactam 500 mg every 12 hr.
Severe biliary obstruction, severe hepatic disease or coexistent w/ renal dysfunction Do not exceed cefoperazone 2 g/day.