Montelukast sodium tablets are able to treat cough. It is a non-hormonal anti-inflammatory drug, a leukotriene receptor antagonist, which can inhibit the receptors of cysteinyl leukotrienes in the airways, improve the inflammation of the airways, and effectively control the symptoms of asthma. It can be used clinically in bronchial asthma, wheezing bronchitis and coughing, coughing and wheezing symptoms that occur in cough variant asthma, and can generally be used for a long time as a class of drugs to prevent asthma and cough variant asthma attacks. This drug may cause mild adverse reactions such as very mild headache, dry mouth, etc. during the course of administration, which generally do not affect the continued use.