Drugs for the treatment of bronchial asthma are mainly divided into two categories. The first category is bronchodilator drugs, including the following: 1. β2 adrenergic receptor agonists, mainly salbutamol, terbutaline, formoterol, salmeterol, etc. 2. anticholinergic drugs, inhaled anticholinergic drugs include ipratropium bromide and tiotropium bromide. 3. theophylline drugs, including aminophylline, theophylline extended-release tablets, dihydroxypropyl theophylline, etc. 2. anti-inflammatory oral drugs, including beclomethasone, budesonide, fluticasone for inhalation. The second group of drugs mainly treats airway inflammation in bronchial asthma: 1. glucocorticoids, including beclomethasone, budesonide and fluticasone for inhalation. 2. anti-inflammatory oral drugs, including montelukast and ketotifen, etc.