What is the recommended intravenous (IV) dose of Augmentin (amoxicillin-clavulanate) for pediatric patients?

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Last updated: December 4, 2025View editorial policy

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IV Augmentin Dosing for Pediatric Patients

For hospitalized children requiring intravenous amoxicillin-clavulanate (Augmentin), the recommended dose is 100-200 mg/kg/day of the amoxicillin component, divided into 3-4 doses given every 6-8 hours. 1

Standard IV Dosing Regimen

  • The typical IV dose range is 100-200 mg/kg/day of amoxicillin component, administered by short intravenous infusion in 3 or 4 divided doses 1
  • For most hospitalized pediatric infections, including lower respiratory tract infections, this dosing achieved complete clinical cure or distinct clinical improvement in all assessable cases with 92% bacteriological success 1

When IV Augmentin Is Indicated

  • IV Augmentin is primarily used for hospitalized children who cannot tolerate oral medications or require parenteral therapy for severe infections 1
  • For hospitalized children with community-acquired pneumonia who are fully immunized and in areas with minimal penicillin resistance, ampicillin or penicillin G are preferred over amoxicillin-clavulanate 2
  • However, for children not fully immunized for H. influenzae type b and S. pneumoniae, or in areas with significant penicillin resistance, ceftriaxone or cefotaxime are recommended first-line agents 2

Transition to Oral Therapy

  • Once clinical improvement is demonstrated (typically within 48-72 hours), transition to oral amoxicillin-clavulanate should be considered 3, 4
  • Oral dosing after IV therapy is 90 mg/kg/day of the amoxicillin component divided into 2 doses, with a maximum of 4000 mg/day 3

Important Clinical Considerations

  • The IV formulation is generally well tolerated, with only mild, transient adverse events (such as exanthema) reported in rare cases 1
  • No additional therapeutic measures were required in clinical studies of IV Augmentin in pediatric patients 1
  • Children should demonstrate clinical improvement within 48-72 hours; if no improvement occurs, reevaluation and consideration of alternative diagnoses or resistant pathogens is necessary 3, 4

Practical Dosing Example

  • For a 20 kg child requiring IV Augmentin at 150 mg/kg/day: administer 750 mg every 6 hours (3000 mg total daily dose) 1
  • This can be adjusted within the 100-200 mg/kg/day range based on infection severity and clinical response 1

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Guideline

Amoxicillin Dosing Guidelines for Pediatric Patients

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Initial Antibiotic Treatment for Pediatric Community-Acquired Pneumonia

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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