Neonatal Drug Therapy Manual

Vancomycin

Disclaimer: Official controlled document is the CHEO and Ottawa Hospital online copy. It is the responsibility of user to ensure that any paper copy version is the same as the online version before use.

Alternate Name(s): 
Vancocin
Classification: 
Antibiotic
Original Date: 
March 1993
Revised Date: 
July 2026
Indications: 
  • Confirmed infections with coagulase negative staphylococcus species (e.g. S. epidermidis)
  • Empiric therapy for serious infections potentially due to methicillin-resistant S. aureus (MRSA)
  • Confirmed infection for methicillin-resistant S. aureus (MRSA)
  • Empirically for < 48 hours for suspected/confirmed meningitis until cultures available and re-assess
  • Confirmed infections due to ampicillin-resistant enterococcus
Administration: 
  • IV intermittent infusion: over 1 hour
Dosage: 

0 - 14 days:

  • < 28 weeks GA: 20 - 22 mg/kg/dose Q24h
  • 29-34 weeks GA: 20 - 22 mg/kg/dose Q18h
  • > 35 weeks GA: 20 - 22 mg/kg/dose Q12h

> 14 days:

  • < 28 weeks corrected GA: 20 - 22 mg/kg/dose Q18h
  • 29 - 34 weeks corrected GA: 20 - 22 mg/kg/dose Q12h
  • > 35 weeks corrected GA: 20 - 22 mg/kg/dose Q8-12h

Infant (corrected GA > 42 weeks and PNA > 4 weeks):

  • 15 mg/kg/dose Q6h

Dosage adjustment required in renal impairment.  Refer to available references or clinical pharmacist for dosage adjustment

Side Effects: 
  • Dermatologic: red man syndrome (associated with rapid infusion rate)
  • Hematologic: eosinophilia, neutropenia
  • Local: phlebitis
  • Otic: ototoxicity associated with high drug levels
  • Renal: nephrotoxicity (enhanced by aminoglycoside therapy)
Parameters to Monitor: 
  • Baseline serum creatinine and Pre level. Repeat both once weekly.  Pre (Trough) levels > 15 mg/L should be monitored a minimum of twice weekly
  • WBC
  • Infusion site

 

Therapeutic drug levels:

  • Serum Pre/trough Levels: 0 - 30 minutes before dose
  • Initial level should be taken prior to the 4th or 5th dose
    • Note: initial level should be taken prior to 2nd or 3rd dose if the dosing interval is >Q12H, or there is renal impairment
  •  When checking pre level, administer next dose as scheduled. Do not wait for level to be reported unless otherwise advised
     
  • Pre (Trough) levels:
    • 6 - 10 mg/L: Infections (e.g bacteremia) with coagulase negative staphylococci (e.g. S. epidermidis) including line infections.
    • 10 - 15 mg/L: Skin and soft tissue infections (and others) caused by methicillin resistant Staphylococcus aureus (MRSA)
    • Higher levels could be considered in other situations however risk of renal and other toxicity is increased. If prolonged treatment is anticipated, optimization of dosing should be done using AUC/MIC calculations (call ASP pharmacist).
  • Post (Peak) levels: Not routine. This will be needed if AUC/MIC will be calculated.
Reconstitution and Stability: 

IV intermittent infusion:

  • Vancomycin 1000 mg vial
    • Add 20 mL SWFI.  Take 5 mL (250 mg) and add to 45 mL D5W
    • Final concentration: 5 mg/mL
  • Vancomycin 500 mg vial
    • Add 10 mL SWFI. Take 5 mL (250 mg) and add to 45 mL D5W
    • Final concentration: 5 mg/mL
Compatibility: 

- Solutions Compatible: dextrose, saline, dextrose-saline combinations

- Y-site Compatible: calcium, fentanyl, heparin (in low concentrations of 0.5 to 1 unit/mL used to maintain IV line potency), midazolam, morphine, pancuronium, SMOF, TPN

Incompatible: dexamethasone, heparin (concentrations greater than 1 unit/mL), phenobarbital

References: 
  • Liu C, Bayer A, Cosgrove SE, Daum RS, Fridkin SK, Gorwitz RJ, Chambers HF.  Clinical Practice Guidelines by the Infectious Diseases Society of America for the Treatment of Methicillin-Resistant Staphylococcus Aureus Infections in Adults and Children: Executive Summary. Clin Infect Dis. Feb 1 2011: 52 (3): 285-292
  • Taketomo CK, Hodding JH, Kraus DM. Pediatric & Neonatal Dosage Handbook 22nd Edition. Hudson: Lexi-Comp Inc.; 2015.
  • Trissel LA. Handbook on Injectable Drugs 19th Edition. Bethesda, Maryland; American Society of Health-System Pharmacists. 2017
  • Rajon K, Vaillancourt R, Varughese N, Villarreal G.  Vancomycin use, dosing and serum  trough concentrations in the pediatric population: a retrospective institutional review. Pharmacy Practice 2017 Apr-Jun;15(2):887
  • de Hoog M, Mouton JW, van den Anker JN. Vancomycin: pharmacokinetics and administration regimens in neonates. Clin Pharmacokinet. 2004;43(7):417-40.
  •  van Hal SJ, Paterson DL, Lodise TP. Systematic review and meta-analysis of vancomycin-induced nephrotoxicity associated with dosing schedules that maintain troughs between 15 and 20 milligrams per liter. Antimicrob Agents Chemother 2013; 57:734–744.
  • Pham JT. Challenges of Vancomycin Dosing and Therapeutic Monitoring in Neonates. J Pediatr Pharmacol Ther. 2020;25(6):476-484.
  • Ywaya R, Newby B. Assessment of Empiric Vancomycin Regimen in the Neonatal Intensive Care Unit. Can J Hosp Pharm. 2019 May-Jun;72(3):211-218.

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