Product Name: Cetirizine hydrochloride
CAS NO: 83881-52-1
Appearance: white powder
MF: C21H26Cl2N2O3
Usage: Treatment of itching and urticaria caused by seasonal rhinitis, perennial allergic rhinitis, allergic conjunctivitis and allergic reactions.
Description:
Cetirizine, sold under the brand name Zyrtec among others, is a potent second-generation antihistamine used in the treatment of hay fever, allergies, angioedema, and urticaria. It acts as a selective antagonist of the histamine H1 receptor.
Second-generation antihistamines like cetirizine are less able to cross the blood–brain barrier and therefore have diminished effects on the central nervous system compared to first-generation drugs. As such, they are less likely to cause drowsiness or memory impairment.
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