Cough suppressant tablet is a compound preparation, which is a combination of Chinese and Western medicines with the effect of relieving cough, expectorant, phlegm and asthma. It can be used clinically for the relief of cough, coughing and wheezing symptoms that occur in acute upper respiratory tract infections, bronchitis, pneumonia and bronchial asthma. This drug contains ingredients such as pseudoephedrine hydrochloride, licorice infusion, bitter almond, gypsum and calcium carbonate, and has relatively few side effects. However, it should be used with caution for athletes, patients with high blood pressure and heart disease, and patients with allergic reactions to the ingredients of the drug are prohibited from taking it.