Vancomycin IV

C. diff Risk


Oral Bioavailability


Approximate Cost


15 mg/kg IV every 8-12 hr depending on trough goal

Complicated infections in seriously ill patients
25-30 mg/kg IV loading dose rounded to nearest 250 mg (max of 2 gm per dose)

Recommend dose per Pharmacy

General Information

Acceptable Uses

  • Treatment of infections by gram positive organisms in patients who have severe allergic reactions to beta-lactam antibiotics

  • Suspected or proven MRSA, coagulase-negative Staphylococci, Ampicillin-resistant Enterococcus, or ceftriaxone resistant S. pneumonia (CSF only) infections

Note: Empiric therapy should be discontinued within 72 hours if the below criteria are not met. Proven:

  • MRSA

  • Methicillin-resistant coagulase-negative staphylococci

  • Ampicillin-resistant enterococcus

  • Ceftriaxone-resistant S. pneumonia (CSF only)

  • Closdtridium difficile infection (oral therapy)

Unacceptable Uses

  • Treatment of a single-positive blood culture for coagulase-negative staphylococci

  • Continued empiric use for presumed infection with negative cultures

  • Prophylaxis for infection or colonization of indwelling intravascular or intracranial catheters

  • Routine surgical prophylaxis (exceptions listed in guideline section)

Common Usage

Suspected or proven MRSA, coagulase-negative Staphylococcal infections, Enterococcal infections.

Drug Monitoring


  • Collect trough 30 min -1 hr before 4th dose

  • Target trough 10-15 mcg/mL for most serious infections, 15-20 mcg/mL for CNS infections, Pneumonia, osteomyelitis, and Endocarditis.

  • If trough low, increase dose (do not exceed 2g/dose) OR decrease dosing interval.

  • If trough >20, increase dosing interval or decrease dose

  • Baseline and at least weekly SCr (for dose and nephrotoxicity assessment)


  • Hypersensitivity

  • Red man syndrome (slow down infusion)

  • Phlebitis

  • GI effects

Adverse Effects

  •  Nephrotoxicity

  •  Cytopenias

  •  Rash including Stevens-Johnson Syndrome

  •  Red man syndrome (histamine release: slow down infusion)

Major Interactions

Aminoglycosides may potentiate nephrotoxicity

May enhance neuromuscular blockade of NM blocking agents

Careful with concomitant nephrotoxins

Additional Information

  • ID consult is strongly advised for proven MRSA infections and for all S. aureus bloodstream infections

  • Target levels vary based on site of infection. Consult Infectious Disease or Pharmacy for assistance


Antimicrobial class: Glycopeptide

Pregnancy category: C

Average serum half life: 8 hours

Biliary penetration: Moderate

CSF penetration: Moderate

Lung penetration: Therapeutic

Urine penetration: Therapeutic