Approved for INDICATIONS AND USAGE Zafirlukast is indicated for the prophylaxis and chronic treatment of asthma in adults and children 5 years of age and older.. CLINICAL PHARMACOLOGY Mechanism of Action Zafirlukast is a selective and competitive receptor antagonist of leukotriene D 4 and E 4 (LTD 4 and LTE 4 ), components of slow-reacting substance of… Side effects, costs, interactions,…
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