C. diff Risk


Oral Bioavailability


Approximate Cost



General Pediatric

75-150mg/kg/24h IV divided q8h
Maximum: 6g/24h

Cystic Fibrosis: 200mg/kg/24h IV (up to 400mg/kg/24hIV ) divided q6-8h
Maximum: 8g/24h


Renally cleared, requires dosage adjustment with changes in renal function. Consult a pharmacist for renal dosing.

General Information

Common Usage

Broad gram negative coverage including Pseudomonas, generally used for nosocomial infections including post-neurosurgical meningitis, or other infections based on susceptibilities. Notable lack of gram positive activity versus other cephalosporins

Adverse Effects

Allergy (immediate and delayed)


Antimicrobial class: 3rd generation Cephalosporin

Route of Elimination: by glomerular filtration with 80-90% of dose excreted as unchanged drug in urine within 24 hours.

Average serum half life:

  • neonates <23 days: 2.2-4.7 hours

  • adults: 1-2 hours