Related Experiment Video
Updated: Jun 15, 2025

A Minimally Invasive Method for Intratracheal Instillation of Drugs in Neonatal Rodents to Treat Lung Disease
Published on: August 4, 2021
Are Alpha-2 Adrenergic Agonists Being Used in Infants?
Owais M Aftab1, Hamza Khan1, Albert Bargoud1
1Department of Ophthalmology, Rutgers-New Jersey Medical School, Newark, New Jersey, USA.
Alpha-2 adrenergic agonists like brimonidine can cause serious adverse events in infants, including hypotonia and central nervous system depression. Enhanced warnings are crucial to prevent accidental infant exposure to these glaucoma medications.
Area of Science:
- Pharmacovigilance
- Pediatric Ophthalmology
- Drug Safety
Background:
- Alpha-2 adrenergic agonists are used to treat glaucoma in infants.
- Systemic absorption and adverse events (AEs) in this population require thorough investigation.
- Brimonidine is a commonly prescribed agent in this class.
Purpose of the Study:
- To identify and quantify adverse events associated with alpha-2 adrenergic agonists, specifically brimonidine, in infants.
- To assess the safety profile of brimonidine in pediatric glaucoma patients.
Main Methods:
- Utilized the Federal Adverse Event Reporting System (FAERS) database from 2004-2023Q1.
- Focused on AE reports for brimonidine in patients aged 12 months or younger.
- Employed disproportionality analysis using data mining algorithms (e.g., PRR, EBGM) to detect significant symptoms.
Main Results:
- Identified 35 unique AE reports for brimonidine in infants.
- Common AEs included hypotonia (20 cases), hypothermia, depressed level of consciousness, lethargy, and pallor.
- Significant systemic AEs were identified, with many cases not involving ophthalmic exposure.
Conclusions:
- Alpha-2 adrenergic agonists, such as brimonidine, are associated with significant systemic adverse events in infants.
- Hypotonia and central nervous system depression are notable risks.
- Enhanced warnings and awareness among ophthalmologists are necessary to prevent unintentional infant exposure.
Related Concept Videos
Adrenergic Agonists: Therapeutic Uses
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and...
Adrenergic Agonists: Therapeutic Classification
Vasopressor or pressor agents: They increase blood pressure and function as cardiac stimulants. Examples include endogenous catecholamines (norepinephrine and dopamine) and synthetic agents (phenylephrine).
Bronchodilators: β2-agonists can relax bronchial muscles and widen airways. They are commonly used for treating obstructive pulmonary...
Antiasthma Drugs: β2-Adrenoceptor Agonists
One class of bronchodilators includes β2-adrenoceptor agonists. These agents target the β2-adrenoceptors located on bronchial smooth muscle cells. By stimulating these receptors, β2-agonists induce...
Adrenergic Agonists: Direct-Acting Agents
These agents can be classified...
Adrenergic Agonists: Mixed-Action Agents
Ephedrine and pseudoephedrine lack a catecholamine group, making them less susceptible to degradation by metabolic enzymes. They have increased oral bioavailability and lipophilicity, resulting in a longer duration of action. Their response is reduced by...
Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers

