Lejet Tablet contains Levocetirizine 5mg, a third-generation non-sedative antihistamine used primarily for the symptomatic relief of allergic conditions. Levocetirizine is the active enantiomer of cetirizine and functions as a selective antagonist of peripheral H1 histamine receptors, thereby inhibiting the effects of histamine released during allergic reactions. This medication is indicated for the treatment of allergic rhinitis, including seasonal and perennial forms, as well as chronic idiopathic urticaria characterized by itching and wheals. Lejet Tablet offers rapid onset of action and sustained relief from symptoms such as sneezing, nasal congestion, rhinorrhea, itching, and ocular irritation. It is well tolerated with minimal sedative effects compared to first-generation antihistamines. The recommended dose for adults and children over 12 years is one tablet (5mg) once daily, preferably in the evening. Dose adjustments may be necessary in patients with renal impairment. Lejet Tablet should be used with caution in individuals with a history of hypersensitivity to levocetirizine or cetirizine. Common adverse effects include headache, dry mouth, and fatigue. As with all medications, it is advised to consult a healthcare professional before initiating therapy to ensure appropriate use and to discuss potential drug interactions.