Does cetirizine (aka Zyrtec) allergy medication contain ANY stimulants?

I am an allergy sufferer who also suffers from panic/anxiety disorder. Because of the anxiety I stay away from caffeine and stimulants. In the past I have taken Claritin, but my doctor recently recommended I try taking Zyrtec. I want to be certain that I will NOT be trying any medication that may contain a stimulant. So, can anyone tell me if cetirizine (aka Zyrtec) contains any form(s) of stimulant(s)?