IV Administer bolus inj 5-20 mL over approx 3-5 min or infusion over approx 15-30 min. 
Adult 500 mg to 1 g every 8 hr. 
Skin & skin structure infections, gynecological infections & complicated UTI 500 mg every 8 hr. 
Intra-abdominal infections, septicemia & febrile episodes in neutropenic patients 1 g every 8 hr. 
Bacterial meningitis 2 g every 8 hr. 
Lower resp tract infections: community-acquired pneumonia (CAP) 500 mg every 8 hr, 
healthcare-associated pneumonia 1 g every 8 hr, 
cystic fibrosis up to 2 g every 8 hr.
 Childn >50 kg Adult dose for 7-14 days. 
Childn 3 mth to 12 yr weighing 50 kg 10-40 mg/kg every 8 hr. 
Complicated UTI 10 mg/kg/dose every 8 hr. 
Complicated intra-abdominal infection & febrile episodes in neutropenic patient 20 mg/kg/dose every 8 hr.
 Skin & skin structure infections & CAP 10-20 mg/kg/dose every 8 hr. 
Cystic fibrosis & meningitis 40 mg/kg/dose every 8 hr. 
Adult Renal impairment CrCl 26-50 mL/min Usual dose every 12 hr,
 10-25 mL/min ½ usual dose every 12 hr,
 <10 mL/min ½ usual dose every 24 hr.