Co-trimoxazole Dose for Children

Sulfamethoxazole/TrimethoprimOral/IV

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Co-trimoxazole

Sulfamethoxazole/Trimethoprim

💊 Used for: Typhoid fever, Pneumocystis carinii infection, UTI prophylaxis

Formulation

Tablet

Standard tablet

Dose Range

58 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 WeightDose (mg)Dose (ml)Max Daily Dose (mg)
5 kg2540 mg25.040.0 ml
6 kg3048 mg30.048.0 ml
7 kg3556 mg35.056.0 ml
8 kg4064 mg40.064.0 ml
9 kg4572 mg45.072.0 ml
10 kg5080 mg50.080.0 ml
12 kg6096 mg60.096.0 ml
15 kg75120 mg75.0120.0 ml
18 kg90144 mg90.0144.0 ml
20 kg100160 mg100.0160.0 ml
25 kg125200 mg125.0200.0 ml
30 kg150240 mg150.0240.0 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.

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