What is the appropriate dose of amoxicillin for a 7-year-old child weighing 22.68 kilograms?

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Last updated: February 16, 2025View editorial policy

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From the Guidelines

Amoxicillin Dosing for a 7-year-old Child

The appropriate dose of amoxicillin for a 7-year-old child weighing 22.68 kilograms is 90 mg/kg/day in 2 doses 1.

  • Based on this guideline, the child's dose would be approximately 2041.2 mg per day, which translates to 51.03 ml per day of amoxicillin 400mg/5ml, divided into 2 doses.
  • A suitable dosing regimen could be 25.5 ml of amoxicillin 400mg/5ml, administered 2 times daily, resulting in a total daily dose of 2040 mg.
  • It is essential to note that the maximum daily dose of amoxicillin should not exceed 4 g/day 1.
  • The dosing regimen may vary depending on the specific clinical scenario and local susceptibility data, and it is crucial to consult the latest guidelines and medical professionals for individualized treatment plans.
  • The provided evidence from 1 and 1 supports the use of amoxicillin as a first-line treatment for community-acquired pneumonia in children, with a recommended dose of 90 mg/kg/day in 2 doses.

From the FDA Drug Label

Table 1 ... 25 mg/kg/day in divided doses every 12 hours or 20 mg/kg/day in divided doses every 8 hours ... 45 mg/kg/day in divided doses every 12 hours or 40 mg/kg/day in divided doses every 8 hours The appropriate dose of amoxicillin for a 7-year-old child weighing 22.68 kilograms depends on the severity of the infection.

  • For mild/moderate infections, the dose is 25 mg/kg/day in divided doses every 12 hours or 20 mg/kg/day in divided doses every 8 hours.
  • For severe infections, the dose is 45 mg/kg/day in divided doses every 12 hours or 40 mg/kg/day in divided doses every 8 hours. To calculate the dose:
  • For mild/moderate infections: 22.68 kg * 25 mg/kg/day = 567 mg/day, or 22.68 kg * 20 mg/kg/day = 453.6 mg/day.
  • For severe infections: 22.68 kg * 45 mg/kg/day = 1020.6 mg/day, or 22.68 kg * 40 mg/kg/day = 907.2 mg/day. Given the child's weight, the dose would be approximately 280-567 mg every 12 hours for mild/moderate infections, or 510-1020 mg every 12 hours for severe infections 2

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 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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