Research progress of clinical application of bronchodilators

Bronchodilators are kinds of drugs that can resist bronchial contraction, dilate bronchial smooth muscle(ASM), reverse airway obstruction and relieve airway stenosis, and have been playing a key role in the treatment of airflow restricted lung diseases such as bronchial asthma and chronic obstructive pulmonary disease(COPD). Rational use of bronchodilators can reduce drug-related adverse reactions, improve the clinical symptoms, and enhance the quality of life. Therefore, it is of great significance for patients with airflow restricted pulmonary disease.