Levotac 5mg Tablet contains Levocetirizine dihydrochloride, an active antihistamine agent used primarily for the treatment of allergic conditions. Levocetirizine is a selective, long-acting antagonist of peripheral H1 receptors, effectively inhibiting the action of histamine, a key mediator in allergic responses. This medication is indicated for the relief of symptoms associated with allergic rhinitis, including sneezing, nasal congestion, runny nose, and itchy or watery eyes. Additionally, Levotac 5mg is utilized in the management of chronic idiopathic urticaria to alleviate itching and reduce the number and size of hives. The recommended dosage for adults and children over 12 years is one 5mg tablet once daily, preferably in the evening, with dosage adjustments considered based on clinical response and renal function. Levocetirizine is generally well tolerated, with common adverse effects including mild drowsiness, fatigue, dry mouth, and headache. It is contraindicated in patients with known hypersensitivity to Levocetirizine or any of its components. Caution is advised when administering to patients with renal impairment or those engaged in activities requiring mental alertness. Levotac 5mg offers effective symptomatic relief with a favorable safety profile in allergic disorder management.