Must LC 5mg/10mg Tablet is a combined pharmaceutical formulation containing Levocetirizine 5mg and Montelukast 10mg. This medication is indicated for the relief of symptoms associated with allergic rhinitis, chronic idiopathic urticaria, and asthma. Levocetirizine, a selective and potent H1 receptor antagonist, provides rapid and effective relief from symptoms such as sneezing, runny nose, itchy and watery eyes, and itching of the nose and throat. Montelukast, a leukotriene receptor antagonist, works by preventing the effects of leukotrienes, substances produced by the body in response to allergens, thereby reducing inflammation and bronchoconstriction. The combined therapy offers comprehensive relief for patients suffering from both allergic rhinitis and asthma. As with any medication, it is important to follow the prescribed dosage and consult a healthcare professional for any questions or concerns.