Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/9/2025

Amoxicillin-Clavulanate Dosing Guidelines for Children

Dosing Recommendations

  • For an 18-month-old child, the recommended dose of amoxicillin-clavulanate is 5 ml of 125/31 suspension three times daily 1
  • For children aged 1-6 years, the appropriate dose of amoxicillin-clavulanate is 5 ml of 125/31 suspension three times daily 1, 2
  • For children under 1 year, the dose would be 2.5 ml/kg of 125/31 suspension three times daily 1
  • For children over 6 years, the dose increases to 5 ml of 250/62 suspension three times daily 1

Potential Adverse Effects and Special Considerations

  • The most common adverse effects include gastrointestinal disturbances such as diarrhea, which is more common with amoxicillin-clavulanate than with some other antibiotics 3
  • Rash, urticaria, and other hypersensitivity reactions may occur 3
  • Monitoring for signs of allergic reaction is important, especially with the first few doses 3

Co-amoxiclav Dosing and Treatment Guidelines for Pediatric Patients

Clinical Monitoring and Treatment Outcomes

  • Children on adequate co-amoxiclav therapy should demonstrate clinical improvement within 48-72 hours, and if the child's condition deteriorates after starting therapy or shows no improvement within 48-72 hours, further investigation should be performed, as recommended by the Infectious Diseases Society of America 4