Hhlevo 10 Tablet contains Levocetirizine 10 mg, an advanced second-generation antihistamine used primarily for the relief of allergy symptoms. Levocetirizine is the active enantiomer of cetirizine and exhibits selective inhibition of peripheral H1 histamine receptors, thereby reducing the effects of histamine in allergic conditions. This medication is indicated for the treatment of allergic rhinitis, including seasonal and perennial allergic rhinitis, as well as chronic idiopathic urticaria characterized by itching and hives. Hhlevo 10 Tablet offers rapid onset of action with minimal sedative effects compared to first-generation antihistamines, making it suitable for daytime use. It is generally well-tolerated, with common adverse effects including mild drowsiness, dry mouth, and fatigue. The tablet should be administered orally, usually once daily, with or without food, as directed by a healthcare professional. Dose adjustments may be necessary in patients with renal impairment. Hhlevo 10 Tablet is contraindicated in individuals with known hypersensitivity to levocetirizine, cetirizine, or any of its excipients. Caution is advised in patients with severe renal dysfunction and in the elderly. This medication should be used under medical supervision, particularly in pregnant or lactating women.