Levorhine 5mg Tablet contains Levocetirizine, a third-generation non-sedative antihistamine used primarily for the treatment of allergic conditions. Levocetirizine acts as a selective inverse agonist of peripheral H1 histamine receptors, effectively reducing symptoms associated with allergic rhinitis, chronic idiopathic urticaria, and other histamine-mediated allergic reactions. By inhibiting the action of histamine, Levorhine alleviates nasal congestion, sneezing, rhinorrhea, and pruritus, improving patient comfort and quality of life. The 5mg dosage is appropriate for adults and children over the age of six, providing a well-tolerated therapeutic option with minimal sedative effects compared to first-generation antihistamines. Levorhine demonstrates rapid onset of action, typically within one hour of oral administration, with a duration of effect lasting up to 24 hours, allowing for once-daily dosing. It is metabolized minimally by the liver and excreted primarily via the kidneys, necessitating dosage adjustments in patients with renal impairment. Common adverse effects may include headache, dry mouth, and fatigue, though these are generally mild and transient. Levorhine 5mg Tablet should be used under medical supervision, with caution advised in patients with pre-existing renal dysfunction or hypersensitivity to levocetirizine or related compounds.