Hello!
I got Zyrtec-D 12 Hour for my allergies/sinus symptoms. And let me tell you it works GREAT! The difference from the regular Zyrtec is nice... I feel much better and am glad I went back in for a re-exam this spring. Ask about it if you are taking the normal Zyrtec, it helps.
Peace
oops, I shoulda just updated my last post. sorry.