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Published on: November 16, 2016
Neuropsychiatric manifestations associated with azithromycin in two brothers
Elad Schiff1, K May, L H Goldstein
1Department of Internal Medicine B, B'nai Zion Medical Center, Haifa, Israel. eschiff@bezeqint.net
Background:
Neurologic adverse events reported in premarketing clinical trials of azithromycin have been mild, occurring in less than 1% of the patients, and include dizziness, headache, vertigo, and somnolence. Serious adverse neuropsychiatric effects of azithromycin have never been reported in the pediatric population and only seldom in adults.
Case Report:
We report two brothers aged 6 and 15 years with severe and prolonged complex neuropsychiatric manifestations associated with azithromycin treatment. Both brothers experienced visual and auditory hallucinations, and one brother additionally experienced multiple partial complex seizures, severe headaches, and recurrent cortical blindness. All symptoms commenced within 24 h after the initial dose of azithromycin and resolved slowly, within 2-4 weeks.
Discussion:
Possible genetic and environmental explanations are discussed, such as polymorphism in uptake of efflux transporters at different levels, particularly at the blood brain barrier level.
Insights
Two brothers experienced severe neuropsychiatric events, including hallucinations and seizures, after azithromycin treatment. These rare side effects resolved over several weeks.
Area of Science:
- Neuroscience
- Pharmacology
- Pediatrics
Background:
- Azithromycin is generally considered safe, with mild neurologic adverse events in <1% of patients in premarketing trials.
- Serious neuropsychiatric effects are rare in adults and have not been reported in pediatric populations.
Observation:
- Two brothers, aged 6 and 15, developed severe neuropsychiatric symptoms after azithromycin.
- Symptoms included visual/auditory hallucinations, seizures, headaches, and cortical blindness.
Findings:
- Neuropsychiatric manifestations began within 24 hours of the first azithromycin dose.
- Symptoms resolved gradually over 2-4 weeks.
- This case highlights potential severe neuropsychiatric adverse events associated with azithromycin in children.
Implications:
- Suggests a need for vigilance regarding azithromycin's neuropsychiatric effects in pediatric patients.
- Potential genetic factors, like transporter polymorphisms, may influence susceptibility.
- Further research into azithromycin's neurotoxicity mechanisms is warranted.
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