Procaterol Hydrochloride Granules are commonly used clinically for bronchial asthma, chronic obstructive pulmonary disease, etc. This product has the effect of bronchodilating. This product mainly contains Procaterol, which is highly selective for β2 receptor and is a β2 agonist, which can diastole bronchial tubes, relieve airway resistance, and improve pulmonary ventilation, and may also have the effect of increasing the movement of bronchial cilia, and this product usually also has anti-allergic effects. Diseases such as bronchial asthma, chronic obstructive pulmonary disease and wheezing bronchitis may cause bronchospasm, increased airway resistance, and clinical symptoms such as wheezing and dyspnea are often present, and the use of Procaterol Hydrochloride Granules usually improves the symptoms. Taking this drug may have palpitations, arrhythmia, headache, dizziness or stomach upset and other adverse reactions, in addition to hyperthyroidism, hypertension, heart disease and other patients should be used with caution. It is recommended to use the drug under the guidance of a doctor.