Carboxymesterol Oral Liquid is not an antibiotic, but a regulator of mucus, acting on the secretion of bronchial glands to increase the percentage of low viscosity mucus gland eggs and decrease the production of high viscosity mucin, thus reducing the viscosity of sputum and making it easy to cough out of the body. It is mainly used for the treatment of patients with thick sputum and difficult coughing caused by acute exacerbation of chronic bronchitis, acute exacerbation of chronic obstructive pulmonary disease, bronchial asthma, bronchial dilatation, emphysema, lung abscess, interstitial pneumonia, pneumonia and other diseases. The dosage for adults is usually 10ml once, 3 times a day.