Need an Exact Dose for Your Child?
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Open Dose Calculator →Co-trimoxazole
Sulfamethoxazole/Trimethoprim
💊 Used for: Typhoid fever, Pneumocystis carinii infection, UTI prophylaxis
Formulation
Tablet
Standard tablet
Dose Range
5–8 mg/kg
Max Daily
N/A
Frequency
Every 12 hours (TMP component)
Max Single
160 mg
Route: Oral/IV
Dose by Child Weight
Based on formulation: Standard tablet
| Child's Weight | Dose (mg) | Dose (ml) | Max Daily Dose (mg) |
|---|---|---|---|
| 5 kg | 25–40 mg | 25.0–40.0 ml | — |
| 6 kg | 30–48 mg | 30.0–48.0 ml | — |
| 7 kg | 35–56 mg | 35.0–56.0 ml | — |
| 8 kg | 40–64 mg | 40.0–64.0 ml | — |
| 9 kg | 45–72 mg | 45.0–72.0 ml | — |
| 10 kg | 50–80 mg | 50.0–80.0 ml | — |
| 12 kg | 60–96 mg | 60.0–96.0 ml | — |
| 15 kg | 75–120 mg | 75.0–120.0 ml | — |
| 18 kg | 90–144 mg | 90.0–144.0 ml | — |
| 20 kg | 100–160 mg | 100.0–160.0 ml | — |
| 25 kg | 125–200 mg | 125.0–200.0 ml | — |
| 30 kg | 150–240 mg | 150.0–240.0 ml | — |
* Always verify with your doctor. doses are approximate and may vary based on condition and formulation.
⚠️ Important Warnings
- •C/I: Infants <1 month, G-6-PD deficiency.
💡 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.