Best definition
Zyrtec is an allergy medicine, not anti-depressant, i hope this news doesnt bring back your depression, but look on the

bright side of things, your noses must be very clear!

Zyrtec makes my nose happy.
zyrtec: define #2
A brand of medicine. Also can be used as a substitute for speed/rapidly/fast acting.
“You! Watch their wing! He goes like a Zyrtec” – Zyrtec Advertisement
zyrtec: define #3
Another brand of anti-depressant drug besides Prozac, basically what keeps me from beings uber-sad.
If i didnt have my Zyrtec, my life would be lame =/