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Open Dose Calculator →Varicella zoster immunoglobulin (VZIG)
Varicella zoster immunoglobulin (VZIG)
💊 Used for: Post-exposure prophylaxis for varicella: 125 units/kg IM within 48-96 hours; neonates of mothers with chickenpox 5 days before to 48 hrs after delivery; immunocompromised children; preterm infants
Formulation
Tablet
Standard tablet
Dose Range
100–200 mg/kg
Max Daily
N/A
Frequency
As directed
Max Single
N/A
Route: IM, IV
Dose by Child Weight
Based on formulation: Standard tablet
| Child's Weight | Dose (mg) | Dose (ml) | Max Daily Dose (mg) |
|---|---|---|---|
| 5 kg | 500–1000 mg | 500.0–1000.0 ml | — |
| 6 kg | 600–1200 mg | 600.0–1200.0 ml | — |
| 7 kg | 700–1400 mg | 700.0–1400.0 ml | — |
| 8 kg | 800–1600 mg | 800.0–1600.0 ml | — |
| 9 kg | 900–1800 mg | 900.0–1800.0 ml | — |
| 10 kg | 1000–2000 mg | 1000.0–2000.0 ml | — |
| 12 kg | 1200–2400 mg | 1200.0–2400.0 ml | — |
| 15 kg | 1500–3000 mg | 1500.0–3000.0 ml | — |
| 18 kg | 1800–3600 mg | 1800.0–3600.0 ml | — |
| 20 kg | 2000–4000 mg | 2000.0–4000.0 ml | — |
| 25 kg | 2500–5000 mg | 2500.0–5000.0 ml | — |
| 30 kg | 3000–6000 mg | 3000.0–6000.0 ml | — |
* Always verify with your doctor. doses are approximate and may vary based on condition and formulation.
⚠️ Important Warnings
- •Not indicated if mother has herpes zoster
💡 Use the DoseCare Calculator for interactive dose calculations tailored to your child's exact weight and formulation.
DoseCare is a decision support tool only. Always verify doses with a qualified healthcare provider.