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Is brimonidine ophthalmic a safe therapy for infants?
1Department of Emergency Medicine & Pediatrics, Children's Hospital of Michigan Regional Poison Control Center, Wayne State University School of Medicine, Detroit, MI, USA. gpat-md@sbglobal.net
Insights
Brimonidine ophthalmic solution can cause serious side effects like bradycardia and hypotension in infants. Caution is advised when using this glaucoma medication in children under two years old.
Area of Science:
- Ophthalmology
- Pediatric Pharmacology
- Toxicology
Background:
- Brimonidine is a topical alpha-2 agonist frequently prescribed for glaucoma treatment.
- Its toxic effects are comparable to clonidine overdose, involving imidazoline and alpha-2 adrenergic receptor mechanisms.
Observation:
- A 6-week-old infant with congenital glaucoma experienced bradycardia and hypotension after receiving brimonidine 0.15% ophthalmic solution.
- This case highlights potential systemic toxicity in infants from topical brimonidine.
Findings:
- Systemic toxicity from brimonidine in the pediatric population, especially in children under two years, is not fully understood.
- Brimonidine is not weight-dosed, increasing the risk of adverse events in pediatric patients.
Implications:
- The safety profile of brimonidine in children under two years requires careful consideration due to potential systemic toxicity.
- Healthcare providers should be aware of brimonidine's side effect profile, particularly given its use in pediatric patients.
Abstract:
Brimonidine is a topical alpha-2 agonist commonly used in the treatment of glaucoma. Brimonidine toxicity resembles that of clonidine overdose and is probably due to both imidazoline and alpha-2 adrenergic receptor effects. We report a case of a 6-week-old infant with congenital glaucoma who developed bradycardia and hypotension following the administration of brimonidine 0.15% ophthalmic solution. There are occasional reports of brimonidine toxicity in the paediatric population but its overall safety profile in children<2 years of age remains uncertain. Brimonidine is not dosed by weight and therefore paediatric patients may be at increased risk for systemic toxicity. It is recommended that the use of this medication be carefully considered in children<2 years of age. Physicians should be aware of its side effect profile because of its general use in the paediatric population.
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