Product Description: Levocetirizine-d4 ((R)-Cetirizine-d4) is the deuterium-labeled Levocetirizine (HY-B0814)[1]. Levocetirizine ((R)-Cetirizine) is a third-generation peripheral H1-receptor antagonist. Levocetirizine is an antihistaminic agent which is the R-enantiomer of Cetirizine. Levocetirizine has a higher affinity for the histamine H1-receptor than (S)-Cetirizine and can effectively treat allergic rhinitis and chronic idiopathic urticaria[2].
Applications: COVID-19-immunoregulation
Formula: C21H21D4ClN2O3
References: [1]Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216.