Hydroxyzine dihydrochloride-d4

Hydroxyzine dihydrochloride-d4 is a deuterated compound of Hydroxyzine dihydrochloride. Hydroxyzine dihydrochloride has a CAS number of 2192-20-3. Hydroxyzine hydrochloride is a histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.