MONALAST 4 ODT contains Montelukast Sodium 4 mg in an Orally Disintegrating Tablet (ODT) form. It is a leukotriene receptor antagonist (LTRA) used in the management of asthma, allergic rhinitis, and exercise-induced bronchoconstriction. The ODT formulation dissolves quickly on the tongue without the need for water, making it ideal for pediatric use or individuals who have difficulty swallowing tablets.