Drug Name	Brand Name	Indications	Drug Class	Mechanism of Action
Montelukast sodium	Singulair	Asthma; Asthma prophylaxis	Leukotriene Pathway Inhibitor	An active leukotriene receptor antagonist that binds to cysteinyl leukotriene type-1 receptors (found in airway smooth muscle cells and macrophages) and prevents airway edema, smooth muscle contraction, and inflammation.
Zafirlukast	Accolate	Asthma	Anti-inflammatory; Leukotriene Pathway Inhibitor	Selective and competative cysteinyl leukotriene D4 and E4 receptor antagonist. It also reduces bronchial hyper-responsiveness to inhaled histamine and other allergens.