Synonyms: Alercet, Alerid, Alerlisin, Cesta, Cetirizine hydrochloride, Cetrine, Cetrizet, Cistamine, Formistin, Histazine, Nosemin, P 071, Reactine, Riztec, Ryzen, Sancotec, Selitex, Triz, UCB-P 071, Virlix, Zeran, Zirtec, Zirtek, Zirtin, Zyrlex, Zyrtec, Zyrzine, Cetiriz, Cetirizine dihydrochloride, Cetrak, Epirizine, Histazine-1, Tomazine,Acetic acid, [2-[4-[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]-, dihydrochloride (9CI)