Hynan 10 Tablet contains Hydroxyzine 10 mg, an antihistamine with anxiolytic, sedative, and antiemetic properties. It is primarily indicated for the management of anxiety and tension associated with psychoneurosis, as well as for the symptomatic relief of allergic conditions such as chronic urticaria, atopic and contact dermatoses, and pruritus. Hydroxyzine acts by antagonizing central and peripheral histamine H1 receptors, thereby reducing allergic responses and exerting a calming effect on the central nervous system. Additionally, it is utilized as a premedication to potentiate analgesia and sedation prior to surgical procedures. The recommended dosage varies based on the indication, patient age, and clinical response, with careful titration advised to minimize adverse effects. Common side effects include drowsiness, dry mouth, and headache, while caution is warranted in patients with a history of QT prolongation, cardiac arrhythmias, or hypersensitivity to hydroxyzine. Hynan 10 Tablet should be used under medical supervision, particularly in elderly patients and those with hepatic or renal impairment. It is contraindicated during pregnancy and lactation unless clearly necessary. Patients are advised to avoid alcohol and other CNS depressants during treatment to prevent additive sedative effects.