Ambroxol Oral Liquid has the effect of asthma and expectorant, and can be clinically used in the treatment of patients with chronic bronchial and bronchial asthma. Ambroterol Oral Liquid has two components, clenbuterol and ambroxol, of which ambroxol is a mucolytic agent, which can increase the secretion of respiratory mucosal plasma glands, reduce mucus gland secretion, reduce the viscosity of sputum, and make sputum easy to cough out. Clenbuterol is a selective β-agonist, which relaxes bronchial smooth muscle, enhances ciliary movement, dissolves mucus and promotes sputum discharge. Ambroterol Oral Liquid is used for the treatment of cough, phlegm mucus, sputum expulsion difficulty and wheezing caused by acute and chronic respiratory diseases (such as acute and chronic bronchitis, bronchial asthma, emphysema, etc.). Adverse reactions such as dizziness, panic, hepatic impairment may occur when taking Ambroterol; patients with hypertrophic cardiomyopathy, patients who are allergic to the product are prohibited from patients who are allergic to the drug components; patients with hypertension, coronary heart disease should be used with caution. Cough patients in the oral administration of Ambroterol, under the guidance of a physician to use the drug.