Hynan Drop contains Hydroxyzine 6 mg, an antihistamine with anxiolytic, sedative, and antiemetic properties. It is primarily indicated for the symptomatic relief of anxiety and tension associated with psychoneurosis and as an adjunct in organic disease states in which anxiety is manifested. Hydroxyzine acts by antagonizing central and peripheral histamine H1 receptors, thereby reducing allergic symptoms and exerting a calming effect on the central nervous system. Additionally, it possesses anticholinergic and antiemetic effects, making it useful in managing nausea and vomiting. Hynan Drop is administered orally, with dosing individualized according to the patient's condition, age, and response to therapy. It is contraindicated in patients with hypersensitivity to hydroxyzine or other piperazine derivatives and should be used with caution in individuals with a history of QT prolongation or cardiac arrhythmias. Common adverse effects include drowsiness, dry mouth, headache, and dizziness. Due to its sedative properties, patients are advised to avoid driving or operating heavy machinery until they understand how the medication affects them. Hynan Drop should be used under medical supervision, especially in the elderly, pregnant, or lactating women, and in those with hepatic or renal impairment.