IV Adult 750 mg-1.5 g every 8 hr for 5-10 days.
Uncomplicated urinary infections, skin & skin structure infections, disseminated gonococcal infections, uncomplicated pneumonia 750 mg every 8 hr.
Severe or complicated infections, bone & joint infections 1.5 g every 8 hr.
Life-threatening infections or infections due to less susceptible organisms 1.5 g every 6 hr.
Bacterial meningitis Do not exceed 3 g every 8 hr.
Preventive use for clean-contaminated or potentially contaminated surgical procedure 1.5 g just before surgery (approx ½ to 1 hr before the initial incision), then 750 mg every 8 hr thereafter when the procedure is prolonged.
Preventive use during open heart surgery 1.5 g at the induction of anesth & every 12 hr thereafter for a total of 6 g.
Ped patient about 3 mth 50-100 mg/kg daily in equally divided doses every 6-8 hr.
More severe or serious infections Max: 100 mg/kg daily
Renal impairment CrCl >20 mL/min 750-1.5 g every 8 hr,
10-20 mL/min 750 mg every 12 hr,
<10 mL/min 750 mg every 24 hr.