I was fortunate enough for my doctor to prescribe me xanax xr (I chose the slow release version over the immediate release), but I could only take it a few days at a time, due to the fatigue it caused me. I went to see a nurse practioner in the same office to see what her opinion might be, and she gave me a bunch of samples for pristiq. I've taken a few days worth and really don't have any side effects, except for nervousness, which I expected at the beginning. I just don't know now if I should try it for the 5-6 weeks to see if it helps, or if I should just be grateful that my doctor let me have the xanax xr and continue on that to see if the fatigue goes away. I have to see him in Dec. and I am not sure what he is going to think about me seeing the nurse practioner and starting on another med. What do you guys think?