Related Experiment Video
Updated: Jun 17, 2026

Trans-Tympanic Drug Delivery for the Treatment of Ototoxicity
Published on: March 16, 2018
Antibiotic dosing for acute otitis media in children: a weighty issue
Sarah Christian-Kopp1, Madhumita Sinha, David I Rosenberg
1Department of Emergency Medicine, Arizona Children's Center at Maricopa Medical Center, Maricopa Integrated Health Systems, Phoenix, AZ 85008, USA.
Insights
Pediatricians often underdose amoxicillin for children with otitis media, especially those who are older or heavier. Experts had varied opinions on maximum amoxicillin dosing, indicating a need for clearer guidelines.
Area of Science:
- Pediatrics
- Infectious Diseases
- Pharmacology
Background:
- The American Academy of Pediatrics (AAP) 2004 guidelines recommend high-dose amoxicillin (80-90 mg/kg/day) for acute otitis media (OM).
- Rising childhood obesity rates mean recommended doses can exceed standard adult limits (1500 mg/day).
Purpose of the Study:
- To investigate primary care physician prescribing patterns for amoxicillin in treating OM.
- To gauge the perspectives of AAP subcommittee members involved in OM guideline development.
Main Methods:
- A two-part study: Part 1 involved a retrospective review of medical records for children diagnosed with OM and prescribed amoxicillin.
- Part 2 consisted of a web-based survey distributed to 14 members of the OM guidelines subcommittee.
Main Results:
- Children weighing 20 kg or less received significantly higher mean amoxicillin doses (74.2 mg/kg/day) compared to heavier children (40.4 mg/kg/day).
- Most subcommittee members (77.8%) indicated obesity's impact on high-dose amoxicillin recommendations was not discussed during guideline formulation.
- If a calculated dose exceeded 1500 mg/day, 66.7% of surveyed members would prescribe the adult dose, while 33.3% would adhere to the pediatric recommendation.
Conclusions:
- Primary care physicians tend to prescribe lower amoxicillin doses than recommended for older children and those in higher weight categories.
- There is a lack of consensus among guideline subcommittee members regarding the specification of a maximum amoxicillin dose.
Background:
The American Academy of Pediatrics 2004 guidelines on diagnosis and management of acute otitis media (OM) recommends use of high-dose amoxicillin for the treatment of acute uncomplicated OM. With rising childhood obesity, recommended amoxicillin dose of 80 to 90 mg/kg per day often exceed standard adult dose of 1500 mg/d.
Objective:
To study prescribing patterns of primary care physicians for amoxicillin in the treatment of OM. To assess opinions of American Academy of Pediatrics subcommittee members who participated in guideline formulation.
Methods:
This study had 2 parts. Part 1: Retrospective review of medical records of children visiting the hospital between April and June 2008 and with a diagnosis of OM and were prescribed amoxicillin. Part 2: Web-based survey of 14 members of the OM guidelines subcommittee.
Results:
Part 1: Three hundred fifty-nine children were eligible, with a mean (SD) age of 3.2 (4.0) years and 185 (51.5%) of whom were males. Children weighing 20 kg or less received higher mean daily dose of amoxicillin (74.2 vs 40.4 mg/kg per day, P < 0.00). Part 2: Nine (64.3%) subcommittee members responded to the survey. Most (77.8%) affirmed that the impact of obesity on high-dose amoxicillin recommendation was not discussed during guideline formulation. If a patient's estimated amoxicillin dose exceeded the standard adult dose (1500 mg/d), 66.7% members would prescribe the standard adult dose whereas 33.3% would prescribe the recommended dose of 80 to 90 mg/kg per day.
Conclusions:
Primary care physicians prescribe a significantly lower-than-recommended amoxicillin dose in older children and those in the higher weight category. The opinion among subcommittee members regarding maximum dose specification of amoxicillin is varied.
Related Concept Videos
Drug Dosing: Infants and Children
Pharmacokinetics in Pediatric Patients: Drug Excretion
Drug Dosing: Obese Patients
Tonsillitis II: Management
Pharmacokinetics in Pediatric Patients: Drug Distribution
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption