C difficile risk
Oral Bioavailability


  • For endocarditis, bacteremias, or other deep-seated infections: 2 gm IV q4h

  • For most other infections: 2 gm IV q6h

General Information

Mostly used for MSSA infections Drug of choice for CNS MSSA infection

  • Allergy/rash (immediate or delayed)

  • Seizures

  • Cytopenias

  • Eosinophilia

  • Interstitial nephritis

  • Abnormal liver enzymes

  • Serum sickness

May increase serum methotrexate levels May DECREASE INR in patients receiving warfarin

Can cause phlebitis if given peripherally. Central line preferred for tolerance

Antimicrobial class: Antistaphylococcal Penicillin

Pregnancy category: B

Average serum half life: 30 minutes

Biliary penetration: Therapeutic

CSF penetration: Therapeutic

Lung penetration: Therapeutic

Urine penetration: Therapeutic

Metabolism: Hepatic

Route of Elimination: Bile and urine

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