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Safety and tolerability of clarithromycin administered to children at higher-than-recommended doses
D A Kafetzis1, F Chantzi, G Tigani
1Second Department of Pediatrics, University of Athens, P. & A. Kyriakou Children's Hospital, Thivon & Levadeias St., Athens, 115 27, Greece. kafetzis@ath.forthnet.gr
Insights
Pediatricians often prescribed higher clarithromycin doses than recommended. This study found higher clarithromycin doses were safe and well-tolerated in children with common respiratory infections.
Area of Science:
- Pediatric Infectious Diseases
- Pharmacology
- Clinical Therapeutics
Background:
- A trend of using higher-than-recommended clarithromycin doses in Greek pediatric practice was observed.
- This macrolide antibiotic is frequently prescribed for pediatric respiratory infections.
Purpose of the Study:
- To evaluate the safety and tolerability of clarithromycin in children, particularly when administered at doses exceeding recommendations.
- To compare outcomes between children receiving recommended versus higher clarithromycin doses.
Main Methods:
- A 9-month observational study involving 343 nonhospitalized children treated by 29 pediatricians in Athens.
- Patients received clarithromycin for upper or lower respiratory tract infections, with dosage data meticulously recorded.
- Tolerability and adverse events were systematically assessed and compared between dosage groups.
Main Results:
- Over 77% of children received clarithromycin doses exceeding the recommended 15 mg/kg/day.
- Clarithromycin demonstrated good to very good tolerability in over 96% of cases, with only 4% experiencing intolerability.
- No statistically significant differences in tolerability or adverse events were found between recommended and higher dose groups.
Conclusions:
- Clarithromycin exhibits a safe and well-tolerated profile in pediatric patients with common infections, even at doses above standard recommendations.
- The efficacy of higher clarithromycin doses in pediatric respiratory infections warrants further investigation.
Abstract:
A tendency among pediatricians in Greece to use higher-than-recommended doses of clarithromycin was noted over several years, prompting this study of the safety and tolerability of this macrolide in 343 children over a period of 9 months. The study group comprised nonhospitalized patients of 29 pediatricians practicing in Athens. All were prescribed clarithromycin for upper respiratory (n = 257) or lower respiratory tract infection (n = 78). Overall, 77.8% were treated with doses that exceeded the recommended dose of 15 mg/kg/day, and 26% received doses of > or = 30 mg/kg/day (median dose, 20 mg/kg/day). The tolerability of clarithromycin was judged as "very good" in 75% of the children, as "good" in 16%, and as "moderate" in 5%, whereas intolerability was observed in 4% of the cases. Adverse reactions, mainly gastrointestinal in nature, were reported in 17.5% of the cases. With regard to both tolerability and adverse events recorded, there were no statistically significant differences between the group of patients who received the recommended dose and the group who received higher doses. Clarithromycin continues to present a safe and well-tolerated profile for the treatment of common pediatric infections, even when administered at higher-than-recommended doses. Whether it is more efficacious in this setting is a matter for further study.
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