Levocetirizine or (R)-Cetirizine, is the levorotary or R-enantiomer of cetirizine, and is a third-generation peripheral H1-receptor antagonist. Levocetirizine is an antihistaminic agent with a higher affinity for the histamine H1-receptor than (S)-Cetirizine. It can effectively treat allergic rhinitis and chronic idiopathic urticaria.

纯度：≥98%

CAS：130018-77-8