Ampicillin

C. diff Risk

Low

Oral Bioavailability

NA

Approximate Cost

Dosing

1 g IV q6h (standard dose)

2 g IV q4h (high dose for meningitis or endocarditis)

General Information

Adverse Effects

Allergy and rash as for all beta-lactams
EBV related rash (not allergy)
Rare: cytopenias, +ve Coombs

Major Interactions

Increased risk of rash with allopurinol

Pharmacology

Antimicrobial class: aminopenicillin

Pregnancy category: B