Salbutamol is a beta2 agonist that acts on the beta2 receptors of bronchial smooth muscle, causing bronchial smooth muscle diastole, which can relieve bronchospasm. In the case of bronchitis or pneumonia, bronchospasm can also occur, resulting in wheezing or difficulty breathing. This can also happen in bronchial asthma. The use of albuterol can relieve the symptoms of bronchial asthma, as well as suffocating wheezing or coughing caused by pneumonia or bronchitis. However, there are certain side effects, although they are relatively rare, nausea, dizziness, and palpitations and muscle tremors can be seen. Long-term use can lead to a certain degree of drug resistance and reduced efficacy, as well as the possibility of aggravating asthma. Therefore, it can only be used for acute attacks, and the basic medication for asthma is inhaled glucocorticosteroids