Laveta M Tablet is a combination medication containing Levocetirizine 5 mg and Montelukast 10 mg, indicated for the management of allergic conditions such as allergic rhinitis and chronic urticaria. Levocetirizine is a selective, non-sedating antihistamine that acts as an H1 receptor antagonist, effectively reducing symptoms like sneezing, nasal congestion, itching, and rhinorrhea by inhibiting the effects of histamine. Montelukast is a leukotriene receptor antagonist that blocks leukotriene D4 at the cysteinyl leukotriene receptor, thereby decreasing bronchoconstriction, inflammation, and mucus production associated with allergic responses and asthma. The combination of these two agents provides a synergistic effect in controlling both immediate and late-phase allergic reactions, improving patient outcomes in allergic rhinitis and asthma-related symptoms. Laveta M is typically administered orally once daily, with or without food, and should be used under medical supervision. Caution is advised in patients with hepatic or renal impairment, and potential side effects include headache, fatigue, dry mouth, and gastrointestinal disturbances. This formulation offers a convenient therapeutic option for patients requiring dual action against histamine- and leukotriene-mediated allergic symptoms.