Zafirlukast used in asthmatic patients acts by

Drugs for Bronchial AsthmaMechanism of actionDrugsBronchodilators b2 sympathomimetics Salbutamol, Terbutaline, Bambuterol, Salmeterol, Formoterol, Ephedrine Methylxanthine Theophylline, Aminophylline, Choline theophyllineAnticholinergics Ipratropium bromide, Tiotropium bromide Leukotriene antagonist Montelukast, Zafirlukast Mast cell stabilizers Sodium cromoglycate, Ketotifen Coicosteroids Systemic Hydrocoisone, Prednisolone Inhalational Beclomethasone, Budesonide, Fluticasone, Flunisolide, Ciclesonide Anti IgE antibody Omalizumab (Refer: Rang and Dale's Clinical Pharmacology, 7th edition, pg no: 345)