Hydroxyzine-d₄ dihydrochloride  (Synonyms: Vistaril-d₄' dihydrochloride; Atarax-dd₄' dihydrochloride)

Hydroxyzine-d₄ (dihydrochloride) is the deuterium labeled Hydroxyzine dihydrochloride. Hydroxyzine dihydrochloride, a benzodiazepine antihistamine agent, acts as a orally active histamine H1-receptor and serotonin antagonist. Hydroxyzine dihydrochloride has anxiolytic effect and can be used forthe research of generalised anxiety disorder[1][2].

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

451.85

C₂₁H₂₅D₄Cl₃N₂O₂

1219805-91-0

2192-20-3

Solid

White to off-white

ClC1=CC=C(C=C1)C(C2=CC=CC=C2)N3CCN(CCOC([2H])([2H])C([2H])([2H])O)CC3.Cl.Cl

Room temperature in continental US; may vary elsewhere.

• [1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.  [Content Brief]

  [2]. Minogiannis, P., et al., Hydroxyzine inhibits neurogenic bladder mast cell activation. Int J Immunopharmacol, 1998. 20(10): p. 553-63.  [Content Brief]

  [3]. Nikita Shekhar Sawantdesai, et al. Evaluation of anxiolytic effects of aripiprazole and hydroxyzine as a combination in mice. J Basic Clin Pharm. 2016 Sep;7(4):97-104.  [Content Brief]