Levorhine M 5mg/10mg Tablet is a combination medication containing Levocetirizine 5mg and Montelukast 10mg, indicated for the management of allergic conditions such as allergic rhinitis and chronic urticaria. Levocetirizine is a potent, selective H1-antihistamine that alleviates symptoms by blocking peripheral histamine H1 receptors, thereby reducing allergic manifestations like sneezing, nasal congestion, and itching. Montelukast, a leukotriene receptor antagonist, inhibits the cysteinyl leukotriene receptor, mitigating inflammation and bronchoconstriction associated with allergic responses and asthma. The synergistic effect of these agents provides comprehensive relief from allergic symptoms by targeting multiple inflammatory pathways. Levorhine M is typically administered once daily, with dosage adjustments based on patient age and clinical response. It is well tolerated, with common adverse effects including headache, fatigue, and gastrointestinal discomfort. Caution is advised in patients with hepatic impairment or a history of neuropsychiatric events. This combination therapy is contraindicated in individuals hypersensitive to either component. Levorhine M offers an effective therapeutic option for patients requiring dual-action treatment for allergic disorders, improving quality of life through sustained symptom control. Healthcare professionals should evaluate patient history and concomitant medications to optimize treatment outcomes.