SINGULAIR 4MG PED. 14 CHEWABLE TABS

About Montelukast Leukotriene(CysLT1) Receptor Antagonist Antiinflammatory antiasthma. Mechanism of Action of Montelukast Montelukast is competitively and selectively antagonizes CysLT1 receptor (leukotrienes receptor) mediated Bronchoconstriction.Montelukast inhibits physiologic actions of LTD 4 at the CysLT1 receptor without any agonist activity. Indications for Montelukast Asthma. Interactions for Montelukast Barbiturates & Primidone: Plasma concentration of montelukast is reduced by phenobarbital.