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Authoritative Clinical Reference
Schedule H
Intravenous, Oral
INDICATIONS + DOSING — FOR CLINICIAN USE ONLY
Primary Indications (Approved / Standard in India):
Route: Intravenous
Parameter Dose Clinical Notes
Loading dose (critically ill) 25–30 mg/kg IV (based on actual body weight) Single dose; infuse over 2 hours; use in sepsis, meningitis, endocarditis
Starting dose 15–20 mg/kg IV every 8–12 hours Based on actual body weight; round to nearest 250 mg
Titration Adjust based on trough concentration Target trough: 15–20 μg/mL for serious infections; 10–15 μg/mL for less severe infections
Usual maintenance dose 15–20 mg/kg IV every 8–12 hours Typically 1–1.5 g every 12 hours in adults with normal renal function
Maximum dose Individualised; up to 4 g/day may be required Only with therapeutic drug monitoring (TDM)
Duration: Bacteraemia: minimum 14 days; Endocarditis: 4–6 weeks; Osteomyelitis: 4–6 weeks; Pneumonia: 7–21 days depending on severity.
Route: Oral ONLY (IV vancomycin is NOT effective for CDI)
Severity Dose Duration Clinical Notes
Non-severe (initial episode) 125 mg orally every 6 hours 10 days First-line therapy per ICMR-AMR guidelines
Severe infection 125 mg orally every 6 hours 10–14 days May increase to 250 mg every 6 hours if inadequate response
Fulminant/Severe-complicated (with ileus, megacolon, shock) 500 mg orally every 6 hours + 500 mg in 100 mL NS per rectum every 6 hours 10–14 days Add IV metronidazole 500 mg every 8 hours; surgical consultation
First recurrence 125 mg orally every 6 hours (if standard regimen used initially) OR fidaxomicin if available 10 days Consider pulsed/tapered regimen for recurrence
Dosing Summary (Oral CDI):
Parameter Dose Clinical Notes
Starting dose 15–20 mg/kg IV every 8–12 hours Use with loading dose in critically ill
Titration Target trough 15–20 μg/mL CNS penetration is limited; higher troughs needed
Usual maintenance dose 15–20 mg/kg IV every 8–12 hours Often combined with ceftriaxone or rifampicin
Maximum dose Up to 60 mg/kg/day in divided doses
Duration 10–14 days minimum Based on organism and clinical response
Parameter Dose Clinical Notes
Starting dose 15 mg/kg IV (maximum 2 g) Single pre-operative dose
Titration Not applicable
Usual maintenance dose Not applicable Single dose prophylaxis
Maximum dose 2 g
Timing Start infusion 60–120 minutes before incision Allows adequate tissue levels at incision time
Note: Not routine first-line for surgical prophylaxis; reserved for documented MRSA colonisation or severe beta-lactam allergy.
Secondary Indications — Adults (Off-label, if any)
Parameter Details
Indication Enterococcal endocarditis when ampicillin cannot be used
Dose 15 mg/kg IV every 12 hours (with gentamicin synergy)
Duration 6 weeks
Specialist only Yes — Infectious diseases/Cardiology
Evidence basis ICMR-AMR protocols; Indian tertiary care hospital experience
Parameter Details
Indication Gram-positive CAPD peritonitis
Dose 15–30 mg/kg intraperitoneally in one exchange daily OR 25 mg/L in each exchange (continuous dosing)
Duration 14–21 days based on organism
Specialist only Yes — Nephrology
Evidence basis ISPD guidelines; Indian nephrology practice
PAEDIATRIC DOSING (Specialist Only)
Primary Indications:
Route: Intravenous
| Age Group | Dose (mcg/kg/day) | Typical Total Daily Dose | Clinical Notes |
|---|
Neonates (0–7 days) 15 mg/kg IV Every 12 hours 30 mg/kg/day Monitor trough levels; prolonged half-life in neonates
Neonates (8–28 days) 15 mg/kg IV Every 8–12 hours 45 mg/kg/day Adjust based on gestational and postnatal age
Infants (1–12 months) 15 mg/kg IV Every 6–8 hours 60 mg/kg/day Target trough 10–20 μg/mL
Children (1–12 years) 15 mg/kg IV Every 6 hours 60 mg/kg/day (max 2 g/day)
Adolescents (>12 years) 15 mg/kg IV Every 6–8 hours 60 mg/kg/day (max 4 g/day) Use adult dosing principles
Dosing Summary:
| Age Group | Dose (mcg/kg/day) | Typical Total Daily Dose | Clinical Notes |
|---|
Children ≥1 year 10 mg/kg orally Every 6 hours 125 mg per dose (500 mg/day) 10 days
Severe/Refractory cases 10 mg/kg orally Every 6 hours Up to 40 mg/kg/day 10–14 days
Parameter Dose Comments
Starting dose 15 mg/kg IV every 6 hours Combined with third-generation cephalosporin
Titration Target trough 15–20 μg/mL
Usual maintenance dose 60 mg/kg/day in 4 divided doses
Maximum dose 60 mg/kg/day (max 4 g/day)
Duration 10–14 days minimum
Secondary Indications — Paediatrics (Off-label, if any)
Shunt Infections / CNS Device-Related Infections — OFF-LABEL
Parameter Details
Indication VP shunt infections with Gram-positive organisms
Dose 15 mg/kg IV every 6 hours (may require intrathecal/intraventricular vancomycin 5–20 mg/day in select cases)
Duration 10–21 days based on organism and response
Specialist only Yes — Paediatric infectious diseases/Neurosurgery
Evidence basis Indian paediatric neurosurgery protocols
Not recommended below 1 month of age except under neonatology/paediatric infectious disease specialist supervision with mandatory therapeutic drug monitoring.
60 No adjustment 15–20 mg/kg every 8–12 hours Trough before 4th dose
40–60 No adjustment 15–20 mg/kg every 12 hours Trough levels essential
20–39 No adjustment 15–20 mg/kg every 24 hours Monitor trough before each dose initially
10–19 No adjustment 15–20 mg/kg every 24–48 hours Levels-guided dosing mandatory
<10 (non-dialysis) No adjustment 15–20 mg/kg every 48–96 hours Re-dose based on trough <15–20 μg/mL
Haemodialysis (conventional) 25–30 mg/kg loading 500 mg–1 g after each dialysis session Check pre-dialysis trough; re-dose if <15 μg/mL
Haemodialysis (high-flux) 25–30 mg/kg loading May need 1–1.5 g after each session More drug removed; level-guided dosing
CAPD 15–30 mg/kg IP loading 25 mg/L in each exchange OR 15–30 mg/kg IP once daily in long dwell Specialist guidance
CRRT 15–20 mg/kg loading 7.5–10 mg/kg every 12 hours Highly variable clearance; frequent TDM
| eGFR (ml/min/1.73m²) | Recommendation |
|---|
| Severity | Recommendation |
|---|---|
| Mild impairment | No dose adjustment required |
| Moderate impairment | No dose adjustment required |
| Severe impairment | No dose adjustment required; vancomycin is renally eliminated; hepatic function does not significantly affect pharmacokinetics |
Aspect Recommendation
Risk category Generally considered safe; crosses placenta; no confirmed teratogenicity in human data
Use in pregnancy Use when clearly indicated for serious Gram-positive infections; preferred over aminoglycosides in pregnancy when glycopeptide indicated
Preferred alternatives Beta-lactams (if susceptible); clindamycin for MRSA skin infections
When to use Serious MRSA infections, penicillin/cephalosporin allergy with severe Gram-positive infection
Monitoring Maternal renal function; therapeutic drug monitoring; fetal auditory assessment in prolonged high-dose therapy (limited data on fetal ototoxicity)
Aspect Recommendation
Compatibility Compatible with breastfeeding
Drug levels in milk Low; poor oral absorption limits infant systemic exposure
Preferred alternatives None specifically required; vancomycin acceptable when indicated
Recommendations Continue breastfeeding; no special timing of feeds required
Infant monitoring Observe for GI disturbances (diarrhoea, oral thrush) — rare
Aspect Recommendation
Starting dose 15 mg/kg IV every 12 hours (lower frequency initially)
Titration Guided by trough levels and renal function
Special considerations Age-related decline in renal function is common; calculate eGFR and adjust accordingly
Extra risks Increased nephrotoxicity and ototoxicity risk; accumulation more likely; Red Man Syndrome may be more pronounced
Monitoring Baseline and serial renal function; trough levels before 4th dose and after any dose adjustment; baseline hearing assessment in prolonged therapy
Drug Interaction Management
Aminoglycosides (gentamicin, amikacin) Additive nephrotoxicity and ototoxicity Avoid concurrent use if possible; if essential, monitor renal function and drug levels closely
Amphotericin B Synergistic nephrotoxicity Avoid combination; if required, monitor renal function daily
IV Loop diuretics (furosemide) Increased ototoxicity risk Use with caution; monitor hearing in prolonged therapy
Colistin Additive nephrotoxicity Avoid or use with extreme caution; frequent renal monitoring
Neuromuscular blocking agents (vecuronium, rocuronium) Enhanced neuromuscular blockade Monitor closely during anaesthesia; may need dose adjustment of NMB
Drug Interaction Management
Piperacillin-tazobactam Increased acute kidney injury risk (controversial but observed in multiple studies) Monitor renal function every 2–3 days when combined; some centres avoid combination
NSAIDs Additive nephrotoxicity with prolonged use Monitor renal function; avoid prolonged concurrent use
Cyclosporine / Tacrolimus Additive nephrotoxicity Monitor renal function and calcineurin inhibitor levels closely
Tenofovir Additive nephrotoxicity Monitor renal function
Contrast media (IV) Additive nephrotoxicity Ensure adequate hydration; space administration if possible
Warfarin Possible enhanced anticoagulant effect (mechanism unclear) Monitor INR; particularly with prolonged vancomycin courses
Adverse Effect Clinical Notes
Anaphylaxis Rare but life-threatening; discontinue immediately; manage as anaphylactic emergency
Stevens-Johnson Syndrome / TEN Very rare; discontinue immediately if mucocutaneous lesions develop
Acute interstitial nephritis May present as fever, rash, eosinophilia, rising creatinine; discontinue and evaluate
Ototoxicity (hearing loss, tinnitus, vertigo) May be irreversible; risk increased with high troughs, prolonged therapy, concurrent ototoxic agents
Neutropenia Occurs with prolonged therapy (>7–14 days); reversible on discontinuation; monitor CBC weekly
Thrombocytopenia Rare; immune-mediated; discontinue if confirmed
Linear IgA bullous dermatosis (vancomycin-induced) Rare drug-induced bullous eruption; discontinue immediately
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) Rare; fever, rash, hepatitis, eosinophilia; discontinue and hospitalize
Action: Discontinue vancomycin immediately if anaphylaxis, severe cutaneous reactions, or significant worsening of renal/auditory function occurs.
| Timing | Parameters |
|---|---|
| Baseline | Serum creatinine, eGFR, CBC with differential; baseline audiometry in patients with pre-existing hearing impairment or anticipated prolonged/high-dose therapy |
Therapeutic Drug Monitoring Trough concentration (drawn 30 minutes before 4th or 5th dose): Target 10–15 μg/mL for less severe infections; 15–20 μg/mL for serious infections (bacteraemia, endocarditis, osteomyelitis, meningitis, HAP)
After initiation/dose change Repeat trough level 3–5 days after dose change; recheck if renal function changes
During therapy Serum creatinine every 2–3 days (stable patients); daily in critically ill or those on concomitant nephrotoxins
Prolonged therapy (>7 days) CBC weekly (monitor for neutropenia); periodic audiometry if high-dose or prolonged therapy
Infusion monitoring Monitor for Red Man Syndrome during infusion; slow infusion rate if symptoms occur
Target AUC/MIC: Some centres use AUC-guided dosing (target AUC₂₄/MIC ≥400) for improved outcomes; requires specialized software or pharmacist input.
Note: No significant FDCs available or recommended.
| Formulation | Approximate Price (per tablet) |
|---|---|
| Injection 500 mg vial | ₹80–200 per vial |
| Injection 1 g vial | ₹150–350 per vial |
| Capsule 125 mg | ₹50–100 per capsule Limited availability |
| Capsule 250 mg | ₹80–150 per capsule |
vancomycin; glycopeptide; MRSA; Gram-positive; C. difficile; CDI; nephrotoxicity; therapeutic drug monitoring; TDM; Red Man Syndrome; NLEM India; ICU antibiotic; Schedule H
RxIndia v1.1 — 17 May 2025
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