The generic name of Shunyen is Montelukast Sodium Chewable Tablets, and the efficacy of this product is seen within one day of administration. Clinically, montelukast sodium chewable tablets belong to cysteinyl leukotriene drugs. The physiological effects produced by the administration are effective in inhibiting the binding of LTC4, LTD4 and other related receptors. This drug is indicated for the prophylaxis and long-term treatment of asthma in children between the ages of 2 and 14 years, for the treatment of aspirin-sensitive asthmatics and for the prevention of exercise-induced bronchoconstriction. It is also indicated for the relief of symptoms caused by allergic rhinitis. The drug is generally well tolerated when taken, adverse effects are mild and usually do not require termination of therapy. It is contraindicated in people who are allergic to the components of the drug. It should not be used in the treatment of acute asthma attacks, patients should be informed about the preparation of appropriate rescue medication. Use with caution in pregnant and lactating women. If you need to take chewable montelukast sodium tablets for treatment due to a medical condition, you need to take them under the supervision of a doctor and avoid self-medication.