Adult 2-4 g/day IV or IM 12 hrly.
Severe or refractory infections Max: 8 g/day.
Patients w/ CrCl 15-30 mL/min Max daily dose: 2 g sulbactam,
CrCl <15 mL/min Max daily dose: 1 g sulbactam.
Childn 40-80 mg/kg/day (ie 20-40 mg/kg/day cefoperazone activity) in 2-4 equally divided doses.
Serious or refractory infections Max: 160 mg/kg/day (ie 80 mg/kg/day cefoperazone activity) in 2-4 equally divided doses.
Neonates (1st wk of life) 12 hrly.