Montelukast tablets are selective leukotriene receptor antagonists, which are non-hormonal anti-inflammatory drugs. It can inhibit leukotriene activity in airway smooth muscle, reduce inflammatory cell edema, reduce airway secretions, and is mainly used in the treatment of allergic asthma and other allergic diseases. Montelukast first listed in foreign countries, and then listed in China, followed by the emergence of domestic drugs, domestic drugs need to undergo a rigorous consistency evaluation before listing, through the demonstration before officially listed for sale, domestic Montelukast sodium and imported Montelukast sodium drug composition is the same, the purity of the difference is not big, the therapeutic efficacy and side effects are basically the same. However, the two are produced by different manufacturers, the price of drugs is different, the dosage form is also different, the price of imported montelukast sodium is relatively high. Specific medication should be used under the guidance of a doctor.