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Clarithromycin-induced hypersomnia in children.

W J Baranowski¹

¹Higher Vocational School of LKO, Lodz, Poland. wszlko@op.pl

International Journal of Clinical Pharmacology and Therapeutics

|May 6, 2011

Summary

Therapeutic doses of clarithromycin can cause hypersomnia in children, a previously unreported side effect. This sleepiness resolved after discontinuing the antibiotic, suggesting a causal link.

Area of Science:

Pediatric Pharmacology
Neuroscience
Clinical Toxicology

Background:

Clarithromycin is a widely used macrolide antibiotic in pediatric populations.
Adverse drug reactions (ADRs) can significantly impact treatment adherence and patient outcomes.
Understanding rare ADRs is crucial for comprehensive pediatric pharmacovigilance.

Observation:

Two pediatric cases of hypersomnia are presented following oral clarithromycin monotherapy.
A 4-year-old girl experienced deep sleep after each dose, while a 13-year-old boy reported increased daytime sleepiness and prolonged nighttime sleep.
Symptoms resolved upon cessation of clarithromycin, with no other causative factors identified.

Findings:

The cases strongly suggest clarithromycin-induced hypersomnia in children, a novel finding in pediatric medicine.

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Naranjo's Adverse Drug Reaction Probability Scale scores supported the diagnosis in both patients.

The temporal relationship between clarithromycin intake, symptom onset, and resolution is a key indicator.

Implications:

Pediatricians and clinicians should consider hypersomnia as a potential uncommon adverse reaction to clarithromycin.
Increased awareness can lead to earlier diagnosis and management of such reactions.
This highlights the importance of monitoring for behavioral changes during antibiotic therapy in children.