Augmentin Dosing Guidelines for Pediatric Patients

Introduction to Augmentin Dosing

The American Academy of Pediatrics recommends a weight-based dosing approach for Augmentin in pediatric patients, with standard dosing at 45 mg/kg/day divided into two doses for most respiratory tract infections 1, 2
For severe infections or areas with high pneumococcal resistance, a high-dose regimen of 90 mg/kg/day divided into two doses is recommended 1, 2

For an 11-year-old patient weighing 74 pounds (33.6 kg), the standard dose is calculated as 33.6 kg × 45 mg/kg = 1,512 mg/day total, divided into 756 mg twice daily 1, 2
The high-dose regimen for this patient would be 33.6 kg × 90 mg/kg = 3,024 mg/day total, divided into 1,512 mg twice daily 1, 2

For mild to moderate respiratory infections, the standard dose of 45 mg/kg/day divided into two doses (approximately 750 mg of amoxicillin component twice daily) provides adequate coverage for most susceptible pathogens 1
The American Academy of Pediatrics recommends using the high-dose regimen of 90 mg/kg/day divided into two doses for severe infections or high-risk situations, such as geographic areas with >10% penicillin-resistant S. pneumoniae 1

For Group A Streptococcal Pharyngitis (chronic carriers), the recommended dose is 40 mg amoxicillin per kg per day in three doses (maximum 2,000 mg amoxicillin per day) for 10 days, as suggested by the American Academy of Family Physicians 3
For this patient, the dose would be 33.6 kg × 40 mg/kg = 1,344 mg/day divided into three doses of approximately 450 mg each 3

The high-dose formulation provides a 14:1 ratio of amoxicillin to clavulanate, which minimizes gastrointestinal side effects while maintaining efficacy, according to the American Academy of Pediatrics 2
The maximum single dose should not exceed 2,000 mg regardless of weight, as recommended by the American Academy of Pediatrics 2

The American Academy of Pediatrics recommends continuing treatment for 10 days for most respiratory infections, including pneumonia and acute bacterial sinusitis 1, 2
Clinical improvement should be evident within 48-72 hours; if no improvement or worsening occurs, reevaluation is necessary, as suggested by the American Academy of Pediatrics 1, 2

Underdosing is a critical error, as using standard doses when high-dose therapy is indicated leads to treatment failure with resistant organisms, according to the American Academy of Pediatrics 2
The American Academy of Pediatrics recommends verifying the indication, as most upper respiratory tract infections are viral and do not require antibiotics at all 2