Lupicet 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 manifestations. This medication is indicated for the treatment of allergic rhinitis, including seasonal and perennial allergies, as well as chronic idiopathic urticaria characterized by itching and hives. Lupicet Tablet provides rapid onset of action with minimal sedation compared to first-generation antihistamines, making it suitable for daytime use. The standard adult dosage is one tablet once daily, which may be adjusted based on clinical response and patient tolerance. Cetirizine is generally well-tolerated; however, potential side effects include headache, dry mouth, fatigue, and gastrointestinal disturbances. It is contraindicated in patients with known hypersensitivity to cetirizine or any of its components. Caution is advised in patients with renal impairment, and dosage adjustments may be necessary. Lupicet Tablet should be used under medical supervision, especially in pregnant or lactating women. It is important to avoid concomitant use with other central nervous system depressants unless directed by a healthcare professional.