Levocet M Tablet is a combination medication containing Levocetirizine 5mg and Montelukast 10mg, formulated to provide effective relief from allergic conditions. Levocetirizine is a second-generation antihistamine that selectively inhibits peripheral H1 receptors, thereby reducing symptoms such as sneezing, nasal congestion, itching, and rhinorrhea associated with allergic rhinitis and chronic urticaria. Montelukast, a leukotriene receptor antagonist, blocks leukotriene D4 at the cysteinyl leukotriene receptor, contributing to the reduction of airway inflammation and bronchoconstriction commonly observed in asthma and allergic rhinitis. The synergistic action of these two agents offers comprehensive management of allergic symptoms by targeting multiple inflammatory pathways. Levocet M is indicated for the treatment of seasonal and perennial allergic rhinitis, chronic idiopathic urticaria, and as an adjunct therapy in asthma management to improve respiratory function and symptom control. The combination is generally well tolerated, with a low incidence of sedation and minimal anticholinergic side effects. It is recommended to be taken once daily, preferably in the evening, to optimize therapeutic outcomes. Caution is advised in patients with hepatic or renal impairment, and it is contraindicated in individuals with known hypersensitivity to either component.