Antimicrobials
Ampicillin

Ampicillin

Low
Low
IV: $$$

General Information

Pathogen directed therapy for CNS, intravascular, intraabdominal, urinary and other infections esp enterococcus and listeria. As part of empiric therapy for early onset sepsis in neonates.

Amoxicillin is preferred for oral therapy.

  • Injection: 250mg, 500mg, 1g, 2g vials
  • Neonatal: 250mg vial

Antimicrobial class: Aminopenicillin

Average serum half life:

  • Neonates: PNA 2-7days: 4 hours PNA 8-14 days: 2.8 hours PNA 15-30 days: 1.7 hour
  • Pediatrics: 1-1.8 hours
  • Anuric patients: 8-20 hours

Route of Elimination:

  • 90% excreted unchanged in urine within 24 hours
  • Excreted in feces