Cefixime Pediatric Dose Calculator
Weight-based cefixime dosing for children — 8 mg/kg/day in 2 divided doses · max 200 mg/dose, 400 mg/day. Enter age and weight for the dose in mg and syrup mL or tablets.
Pediatric dosing
Respiratory infection / UTI
Enteric fever (typhoid)
Cefixime dose chart by age and weight
Respiratory infection / UTI. Weights are WHO/IAP reference medians for age — always dose on the measured weight.
| Age | Weight | Dose (mg) | Suspension 50 mg/5 mL | Suspension 100 mg/5 mL | Frequency |
|---|---|---|---|---|---|
| 6 months | 7.6 kg | 30.4 mg | 3 mL | 1.5 mL | Every 12 hours |
| 9 months | 8.6 kg | 34.4 mg | 3.4 mL | 1.7 mL | Every 12 hours |
| 1 year | 9.3 kg | 37.2 mg | 3.7 mL | 1.9 mL | Every 12 hours |
| 18 months | 10.6 kg | 42.4 mg | 4.2 mL | 2.1 mL | Every 12 hours |
| 2 years | 11.8 kg | 47.2 mg | 4.7 mL | 2.4 mL | Every 12 hours |
| 3 years | 14.1 kg | 56.4 mg | 5.6 mL | 2.8 mL | Every 12 hours |
| 4 years | 16.2 kg | 64.8 mg | 6.5 mL | 3.2 mL | Every 12 hours |
| 5 years | 17.5 kg | 70 mg | 7 mL | 3.5 mL | Every 12 hours |
| 6 years | 19 kg | 76 mg | 7.6 mL | 3.8 mL | Every 12 hours |
| 8 years | 24.4 kg | 97.6 mg | 9.8 mL | 4.9 mL | Every 12 hours |
| 10 years | 31.1 kg | 124.4 mg | 12.5 mL | 6.2 mL | Every 12 hours |
| 12 years | 39.4 kg | 157.6 mg | 16 mL | 7.9 mL | Every 12 hours |
Strengths in the calculator
- Suspension 50 mg/5 mL (Oral)
- Suspension 100 mg/5 mL (Oral)
- Dispersible tablet 100 mg (Oral)
- Tablet 200 mg (Oral)
Different strength on your bottle? Use “Different strength on the bottle?” under the result.
Safety
Contraindications and cautions
- Cephalosporin allergy; caution with severe penicillin allergy.
Pregnancy and breastfeeding
Legacy FDA category B. No evidence of harm; use when clearly indicated.
Limited data; generally considered compatible.
Clinical notes
Oral third-generation cephalosporin. Poor activity against Staphylococcus aureus — not suitable for skin infections.
Adult and adolescent (≥40 kg) dose
200 mg — Every 12 hours (or 400 mg once daily) (max 400 mg per dose, 400 mg per day).
Other names and brands
- India: Taxim-O, Zifi
- USA: Suprax
Brand examples only — products and strengths vary by country. Always check the label.
Frequently asked questions
What is the cefixime dose for children?
Respiratory infection / UTI: 8 mg/kg/day in 2 divided doses · max 200 mg/dose, 400 mg/day. Usual duration: 5–10 days (UTI 7–14 days). Always use the child's measured weight and check the strength on the bottle.
How many mL of suspension 50 mg/5 mL for an 11.8 kg child?
For respiratory infection / UTI, an 11.8 kg child (about 2 years) needs 47.2 mg per dose — 4.7 mL of Suspension 50 mg/5 mL, every 12 hours. Recalculate with the child's actual weight.
From what age can cefixime be given?
Age range in PediaRx: ≥6 months – adult. The calculator does not calculate a dose below 6 months. Each indication can have its own age and weight limits, shown with its regimen.
Is cefixime safe in pregnancy?
Legacy FDA category B. No evidence of harm; use when clearly indicated.
Sources and editorial process
- Cefixime (Suprax) — US prescribing information — DailyMed (U.S. National Library of Medicine)
- Enteric fever in children — Indian Academy of Pediatrics recommendations — Indian Academy of Pediatrics
Dosing data last updated 2026-09-27. PediaRx is built and maintained by Dr. Shounak Pal, MBBS (Medical Officer, Government of West Bengal, India — founder and developer of PediaRx). Every regimen is encoded with explicit units, maximum doses and age/weight limits and is checked by automated tests before publication. Report an error: hello@pediarx.com.
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Clinical disclaimer: reference tool for qualified health professionals. Verify every dose against current guidance and the product label before prescribing.
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