Ceftriaxone Pediatric Dose Calculator

Weight-based pediatric dosing for Ceftriaxone. Also known as Monocef, Taxim-O, Oframax. Built for busy OPDs and emergency settings — free, offline after first load.

Author: Dr. Shounak Pal, MBBS Reviewed: 2026-07 DB: v4.0 Audience: Clinicians Category: Antibiotic

Typical pediatric dosing

Sepsis / pneumonia / UTI: 50–75 mg/kg OD IV/IM — max 2000 mg/dose — 7–14 days; Meningitis: 100 mg/kg OD (or 50 mg/kg BD) — max 4000 mg/dose — 10–14 days

Syrup strengths: Tablet / IV formulations available — use calculator.

For a typical 5-year-old (~18 kg), one dose is about 900 mg — use the calculator for exact syrup mL by strength.

Complete Ceftriaxone details

Age range
Birth – adult
Min age
0 months
Pregnancy
Category B — Verify against obstetric guidance and product insert.
Clinical notes
No calcium co-infusion. Caution in jaundiced neonates — cefotaxime often preferred.
Also known as
monocef, taxim, taxim-o, oframax, ceftriaxone iv

Indications & regimens

  • Sepsis / pneumonia / UTI: 50–75 mg/kg OD IV/IM — max 2000 mg/dose — 7–14 days
  • Meningitis: 100 mg/kg OD (or 50 mg/kg BD) — max 4000 mg/dose — 10–14 days

Formulations

  • IV / injectable: 1000 mg/vial; Diluent: NS or D5W 50–100 mL; Infusion: 30–60 min; NEVER mix with calcium-containing fluids

Adult dosing

1000 mg; OD–BD IV; max single 2000 mg; max daily 4000 mg

Contraindications & cautions

See product insert and local protocol for contraindications and cautions.

Medical trust & authorship (EEAT)

Who owns and developed PediaRx? Dr. Shounak Pal, MBBS — Founder, clinical author, and sole developer of PediaRx. The clinical database was authored for the developer’s own practice and peer-tested with clinical colleagues; it is not a third-party “review-only” widget.

Qualifications: Practising physician (MBBS). Profile: .

References: BNFc, IAP Drug Formulary, WHO guidance, NNF neonatal schedules (where applicable), and product inserts. Primary jurisdiction: India (IN). Useful globally — always verify against local formularies.

Last drug-record review: 2026-07 (formulary DB v4.0). Live updates sync from db.pediarx.com; corrections are issued via formulary version bumps.

Privacy: No patient identifiers collected. Weight/age stay on-device. Intended for clinicians, not patient self-medication.

How to report an error: [email protected] · Disclaimer · Privacy

Common questions

What is the pediatric dose of Ceftriaxone?

Sepsis / pneumonia / UTI: 50–75 mg/kg OD IV/IM — max 2000 mg/dose — 7–14 days; Meningitis: 100 mg/kg OD (or 50 mg/kg BD) — max 4000 mg/dose — 10–14 days Always verify against current national guidelines and the product label.

How do I calculate Ceftriaxone syrup dose for a child?

Enter the child's age and weight in the calculator on this page (right column on desktop; above the article on mobile). PediaRx shows mg per dose, syrup mL by strength, tablet fractions, and IV volume when available — using the live formulary from db.pediarx.com. Brand names include Monocef, Taxim-O, Oframax.

Who built and maintains the Ceftriaxone dosing data in PediaRx?

PediaRx was built and clinically authored by Dr. Shounak Pal, MBBS — a practising physician — for personal clinical use and peer-tested with colleagues. It is not a third-party review of someone else's calculator.

What references support these doses?

Doses are curated from BNFc, IAP Drug Formulary, WHO guidance, and NNF schedules where applicable. India (IN) is the primary formulary region; always confirm against your local protocol and product insert.

Does PediaRx collect patient information?

No. Age, weight, and sex stay on your device. Calculations run locally. Anonymous analytics (page views) may be collected; no clinical inputs are transmitted.

Is PediaRx for clinicians or patients?

PediaRx is a clinical reference for qualified healthcare professionals (GDMOs, paediatricians, medical officers, family physicians). It is not intended as a consumer self-medication tool.

Is PediaRx free?

Yes. Free clinical reference — no ads, no subscriptions, no accounts. Works offline after first load.

What is the pregnancy category for Ceftriaxone?

Category B. See product insert and obstetric guidance.

Clinical disclaimer: Reference tool for qualified professionals only. Verify every dose against IAP/NNF/BNFc/product insert before prescribing. Clinical aid only. Verify every dose with IAP/NNF/BNFc/product insert/local protocol before prescribing.

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