Cetirizinenoun
(pharmaceutical drug) A major metabolite of hydroxyzine, an antihistamine used in the treatment of allergies, hay fever, angioedema, and urticaria.
Cetirizine
Cetirizine, sold under the brand name Zyrtec among others, is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives). It is taken by mouth.
Loratadinenoun
An antihistamine drug used to treat allergies.
Loratadine
Loratadine, sold under the brand name Claritin among others, is a medication used to treat allergies. This includes allergic rhinitis (hay fever) and hives.