Antibiotic (Glycopeptide)
Pregnancy: C — use only if essential (crosses placenta, foetal ototoxicity risk)
Vancomycin
Brand names: Vancocin
Adult dose
Dose: AUC-guided dosing: target AUC/MIC 400–600. Loading dose 25–30mg/kg IV, then 15–20mg/kg every 8–12h
Route: IV (systemic) or Oral (C. difficile only)
Frequency: Every 8–12 hours (systemic). Oral C. difficile: 125mg QDS × 10 days
Traditional: 15mg/kg every 12h. AUC-guided dosing now preferred. Infuse over at least 60 min (red man syndrome risk with rapid infusion).
Paediatric dose
Dose: 15 mg/kg
Route: IV
Frequency: Every 6 hours
Max: 750mg per dose
Neonates: 10–15mg/kg every 12–24h (adjust based on gestational age). Children: 15mg/kg every 6h. TDM mandatory.
Paediatric weight-based calculator
Neonates: 10–15mg/kg every 12–24h (adjust based on gestational age). Children: 15mg/kg every 6h. TDM mandatory.
Clinical pearls
- Red man syndrome (flushing, erythema, not allergy): slow infusion rate, premedicate with antihistamine
- AUC/MIC-guided dosing now standard — reduces nephrotoxicity vs trough-only monitoring
- Oral vancomycin NOT absorbed — used ONLY for Clostridium difficile (local gut action)
- MRSA bacteraemia: vancomycin is gold standard. MIC creep is a concern — escalate to daptomycin if MIC ≥2 mg/L
- Dose requires renal function (creatinine clearance) and ideal body weight calculations
Contraindications
- Hypersensitivity to vancomycin
Side effects
- Nephrotoxicity
- Ototoxicity
- Red man syndrome (rapid infusion — flushing, erythema)
- Thrombophlebitis
- Neutropenia (prolonged)
Interactions
- Aminoglycosides, NSAIDs, loop diuretics — additive nephrotoxicity
- Neuromuscular blocking agents — prolonged blockade
Monitoring
- AUC-guided TDM (preferred) or trough levels (target 15–20 mg/L for serious infections)
- Renal function (every 48–72h)
- FBC (neutropenia)
- Hearing (prolonged courses)
Reference: BNFc; ASHP/IDSA Vancomycin TDM Guidelines 2020; BNF. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- Vancomycin Dosing Calculator · Drug Dosing
- Centor / McIsaac Score for Strep Pharyngitis · Throat
- FeverPAIN Score for Strep Throat · Throat
- Clostridioides difficile Severity Grading · Gastrointestinal Infection
- PID Severity (CDC Diagnostic Criteria) · Gynaecological Infections
- Gustilo-Anderson Classification (Open Fractures) · Fracture Classification
Pathways
- Major Trauma — Primary Survey (ATLS) · ATLS 10th Edition; JRCALC; NICE NG39
- Major Haemorrhage / Massive Transfusion · BCSH; RCOA; RCEM; RCS — BCSH Guidelines
- Lower Gastrointestinal Bleed · NICE; BSG; ACPGBI — Commissioning Guide
- Acute Pancreatitis · NICE; IAP/APA; ACPGBI — CG104
- Faecal Peritonitis · ASGBI; RCS — Best Practice
- Acute Compartment Syndrome · BAPRAS; BOA; RCS — Best Practice