Zerviate

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).[5] It is taken by mouth.[6] Effects generally begin within an hour and last for about a day.[6] The degree of benefit is similar to other antihistamines such as diphenhydramine.[6] Common side effects include sleepiness, dry mouth, headache, and abdominal p... [wikipedia]