Adult 500 mg-1 g 4-8 hrly.
Mild skin & soft tissue infection, uncomplicated pneumonia 500 mg 6 hrly.
Mild uncomplicated UTI infection 500 mg 8 hrly. Severe infections: 1 g 4 or 6 hrly.
Severe UTI infections 1 g 8 hrly. Life-threatening infection: 2 g 4 hrly.
Childn & infant 50-100 mg/kg/day in divided doses 4-8 hrly. More severe infections: 150 mg/kg/day. Max: Adult dose.
Pre-op Adult 1-2 g IV/IM ½-1 hr before surgery then 1-2 g 6 hrly for 24-48 hr.
Childn >3 mth 50-100 mg/kg/day in divided doses IV/IM.