Oral hydrOXYzine hydrochloride is contraindicated in people with regarded hypersensitivity to hydrOXYzine hydrochloride products, As well as in patients with recognised hypersensitivity to cetirizine hydrochloride or levocetirizine hydrochloride. HydrOXYzine is contraindicated in clients with a protracted QT interval. HydrOXYzine, when administered