Related Experiment Video
Updated: Jul 19, 2026

Dry Powder and Nebulized Aerosol Inhalation of Pharmaceuticals Delivered to Mice Using a Nose-only Exposure System
Published on: April 6, 2017
Beta2-agonists for asthma: the pediatric perspective
Padmaja Subbarao1, Felix Ratjen
1Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada. padmaja.subbarao@sickkids.ca
Insights
Inhaled beta-agonists are common for infant wheezing, but may harm lung health. This review examines their development, use, and potential negative effects in children.
Area of Science:
- Pediatric Pulmonology
- Pharmacology
Background:
- Inhaled beta-agonists are widely used for pediatric wheezing disorders.
- Concerns exist regarding their potential adverse effects on lung health and symptoms.
Purpose of the Study:
- To review beta-agonist receptor and smooth muscle development in children.
- To evaluate the clinical utility of beta-agonists in pediatric wheezing and asthma.
- To discuss the potential detrimental effects of beta-agonists in this population.
Main Methods:
- Literature review of developmental biology.
- Synthesis of evidence on clinical efficacy.
- Discussion of safety data for beta-agonist medications.
Main Results:
- Beta-agonist receptors and smooth muscle mature throughout fetal and childhood development.
- Evidence for clinical utility in wheezing infants and asthmatic children is reviewed.
- Potential detrimental effects of both short- and long-acting beta-agonists are considered.
Conclusions:
- The use of inhaled beta-agonists in children requires careful consideration of developmental factors.
- Further research is needed to fully understand the long-term safety and efficacy profiles.
- Balancing benefits and risks is crucial for optimal management of pediatric respiratory conditions.
Abstract:
Inhaled beta-agonists are commonly prescribed for the treatment of wheezing disorders in infants and children. Despite this, there are concerns that these medications have potentially detrimental effects on lung health and symptoms. We will review the ontogeny of beta-agonist receptor and smooth muscle development from fetal life through infancy and childhood as well as the evidence supporting the clinical utility of beta-agonists in wheezing infants and asthmatic children. Finally, the potential detrimental effects of long- and short-acting beta-agonists in infants and children are discussed.
Related Concept Videos
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 relaxation in these...
Asthma-IV: Diagnostic and Management
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
Inhaled Medications
Drugs Used in Lower Respiratory Disorders: Overview
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
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 anaphylaxis:...
Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers
