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Drugs affecting the respiratory system with particular reference to asthma
Medicine and Science in Sports and Exercise
|January 1, 1981
Summary
Aerosolized beta-sympathomimetics effectively prevent exercise-induced asthma (EIA) attacks in most patients. This method is superior to oral medications, offering rapid relief and fewer side effects for asthma management.
Area of Science:
- Pulmonology
- Pharmacology
Background:
- Exercise-induced asthma (EIA) affects 70-80% of asthmatics, causing airway obstruction and hypoxemia during strenuous activity.
- Recent advancements have significantly improved EIA prevention and treatment strategies over the past decade.
Purpose of the Study:
- To evaluate the efficacy of different drug administration routes for preventing and treating exercise-induced asthma.
- To compare aerosolized versus oral administration of bronchodilators for EIA management.
Main Methods:
- Review of recent advancements in EIA prevention and treatment.
- Analysis of the effectiveness of aerosolized beta-sympathomimetics and sodium cromoglycate.
- Comparison of oral versus aerosolized drug administration for EIA.
Main Results:
- Aerosolized beta-sympathomimetics are highly effective, blocking EIA symptoms in approximately 90% of patients when administered before exercise.
- Sodium cromoglycate also shows efficacy, preventing EIA in 60-70% of patients.
- Oral administration of beta-sympathomimetics or methylxanthines is less effective due to delayed absorption and lower airway concentrations.
Conclusions:
- Aerosolized beta-sympathomimetics represent a superior treatment for EIA, offering rapid and effective symptom prevention.
- Aerosol therapy requires lower doses and results in fewer side effects compared to oral administration for EIA management.