Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/29/2025

Co-Amoxiclav Dosing Guidelines for Pediatric Patients

Dosage Determination

  • For children less than 1 year, the appropriate co-amoxiclav syrup dosage is 2.5 ml/kg of 125/31 suspension three times daily, according to established guidelines 1
  • For children 1-6 years, the recommended dosage is 5 ml of 125/31 suspension three times daily, as suggested by guidelines 1, 2
  • For children over 6 years, the recommended dosage is 5 ml of 250/62 suspension three times daily, based on guidelines 1, 2, 3

Alternative Dosing Considerations

  • For severe infections requiring intravenous administration, a dosage of 30 mg/kg three times daily is recommended 1, 4
  • For children 7-12 years, a dosage of 5 ml of 250/62 suspension three times daily is suggested 1
  • For children 12-18 years, a dosage of 1 tablet of 250/125 three times daily is recommended 1

Potential Adverse Effects

  • Common side effects of co-amoxiclav include gastrointestinal disturbances such as diarrhea, nausea, and vomiting, as reported by the Praxis Medical Insights 5
  • Rash and hypersensitivity reactions may occur in some patients, according to the Praxis Medical Insights 5
  • Monitoring for signs of allergic reactions is crucial, especially in patients with a history of penicillin allergy, as advised by the Praxis Medical Insights 5

Important Considerations to Avoid

  • Using adult formulations for children can lead to dosing errors, as warned by guidelines 1

Co-Amoxiclav Administration in Pediatric Patients

Administration Considerations

  • The medication can be given with or without food, though administration with meals may improve gastrointestinal tolerability 6