Leecet Tablet contains Cetirizine 10mg, a second-generation antihistamine used primarily for the relief of allergy symptoms. Cetirizine acts as a selective antagonist of peripheral H1 histamine receptors, effectively reducing the effects of histamine, a substance responsible for allergic reactions. Leecet is indicated for the treatment of allergic rhinitis, including seasonal and perennial allergies, as well as chronic idiopathic urticaria characterized by itching and hives. The tablet formulation provides convenient oral administration with rapid onset of action and a duration of effect lasting up to 24 hours, allowing once-daily dosing. Compared to first-generation antihistamines, Cetirizine is less likely to cause sedation or impair cognitive function, making it suitable for daytime use. The recommended dose for adults and children over 12 years is one 10mg tablet daily, while dosage adjustments may be necessary for patients with renal impairment. Leecet should be used with caution in individuals with known hypersensitivity to Cetirizine or any tablet excipients. Common adverse effects include headache, dry mouth, and fatigue, which are generally mild and transient. Patients are advised to consult healthcare professionals before use, especially if pregnant, breastfeeding, or taking other medications to avoid potential interactions.