Terbutaline, also known by the trade name Bolicam, is used for the treatment of bronchial asthma, asthmatic bronchitis, emphysema, etc. It is a beta2-adrenoceptor agonist with bronchodilator effect, highly selective for bronchial smooth muscle, with very little cardiac excitability and no central effect. It is used for bronchial asthma, wheezing bronchitis, obstructive emphysema and other pulmonary diseases with bronchospasm, especially for asthma patients with hypertension, coronary artery disease and other cardiovascular diseases. This drug is mainly nebulized inhalation or oral administration. Nebulized inhalation is relatively more direct, acting directly on the mucous membrane of the airways and acting more quickly. However, the main medication for asthma patients is inhaled glucocorticosteroids, do not use terbutaline as an asthma control drug for a long time.