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Open Dose Calculator →Penicillin G Benzathine
Penicillin G benzathine
💊 Used for: Secondary prophylaxis against rheumatic fever
Formulation
Injection
0.6 mega units (<6 yrs), 1.2 mega units (≥6 yrs)
Dose Range
50000–100000 mg/kg
Max Daily
N/A
Frequency
IM every 3 weeks
Max Single
N/A
Route: IM
Dose by Child Weight
Based on formulation: 0.6 mega units (<6 yrs), 1.2 mega units (≥6 yrs)
| Child's Weight | Dose (mg) | Dose (ml) | Max Daily Dose (mg) |
|---|---|---|---|
| 5 kg | 250000–500000 mg | 250000.0–500000.0 ml | — |
| 6 kg | 300000–600000 mg | 300000.0–600000.0 ml | — |
| 7 kg | 350000–700000 mg | 350000.0–700000.0 ml | — |
| 8 kg | 400000–800000 mg | 400000.0–800000.0 ml | — |
| 9 kg | 450000–900000 mg | 450000.0–900000.0 ml | — |
| 10 kg | 500000–1000000 mg | 500000.0–1000000.0 ml | — |
| 12 kg | 600000–1200000 mg | 600000.0–1200000.0 ml | — |
| 15 kg | 750000–1500000 mg | 750000.0–1500000.0 ml | — |
| 18 kg | 900000–1800000 mg | 900000.0–1800000.0 ml | — |
| 20 kg | 1000000–2000000 mg | 1000000.0–2000000.0 ml | — |
| 25 kg | 1250000–2500000 mg | 1250000.0–2500000.0 ml | — |
| 30 kg | 1500000–3000000 mg | 1500000.0–3000000.0 ml | — |
* Always verify with your doctor. doses are approximate and may vary based on condition and formulation.
⚠️ Important Warnings
- •C/I: Penicillin hypersensitivity.
💡 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.