anxiety
"The medicine itself I didn't have an issue with, although I still prefer Klonopin, but it was the withdrawal I couldn't handle.  I was on this medication for two months and since, like I previously mentioned, I decided to go back on Klonopin. I stopped taking the Xanax XR. When I did, I felt like a bus ran over me.  I felt shaky, drowsy and like I'd been out drinking the night before (which I haven't done in 10 years). It really wasn't worth the withdrawal."