panic disorde
"I had used Xanax early on after my diagnosis of panic disorder.  It definitely worked, but was a rollercoaster ride.  Klonopin lasts much longer, and I need less of it to work.  I'm not worried about dependence since I use it as needed (PRN) and only 0.125 mg.  It definitely works great for me.  It is a bit constipating at times."