meclizine

Meclizine, also known as Meclozine, is a piperazine class H1 antagonist with antihistamine properties that inhibits the interaction of histamine at H1 receptors reversibly. It serves as an effective anti-motion sickness agent, able to cross the blood-brain barrier. Additionally, Meclizine acts as an agonist ligand for the mouse constitutive androstane receptor (CAR) and an inverse agonist for human CAR, making it useful in research on polyQ toxicity disorders, including Huntington's disease.

Meclizine dihydrochloride (NSC28728) is a histamine H1 antagonist used in the treatment of motion sickness, vertigo, and nausea during pregnancy and radiation sickness.

Meclizine N-oxide, a metabolite of the histamine H1 receptor antagonist meclizine (1), also acts as a degradation product and potential impurity in commercial meclizine preparations (2).

Meclizine dihydrochloride-d8 is a deuterated compound of Meclizine dihydrochloride.