Vancomycin and Ticarcillin Compatibility and Clinical Use Guidelines
Recommended Dosage and Administration
- The Infectious Diseases Society of America recommends vancomycin 15-20 mg/kg IV every 8-12 hours with target trough concentrations of 15-20 μg/mL for serious MRSA infections, such as bacteremia, endocarditis, osteomyelitis, meningitis, pneumonia, and necrotizing fasciitis 1, 2, 3
- For seriously ill patients with suspected MRSA infection, a loading dose of 25-30 mg/kg (actual body weight) is recommended, with prolonged infusion time to 2 hours and consideration of antihistamine premedication to prevent red man syndrome 4, 5
- Obtain trough concentrations at steady state, before the fourth or fifth dose, to guide dosing adjustments, as recommended by the Infectious Diseases Society of America 2, 4
Concurrent Use with Other Antibiotics
- If concurrent gram-negative coverage is needed, ticarcillin can be administered separately, but addition of gentamicin or rifampin to vancomycin for MRSA bacteremia or native valve endocarditis is not recommended, according to the Infectious Diseases Society of America 3
Monitoring and Safety Precautions
- Monitor for nephrotoxicity when vancomycin is combined with other potentially nephrotoxic agents, as trough levels >15 mg/L significantly increase this risk, as noted by the Praxis Medical Insights guideline 5