Background - I take .25 or .5 mg of Xanax as needed for anxiety. I use it as a rescue drug than daily maintenance. To give yo uan idea, I have used is about 5 tiems in the past month. However, I probably needed it more often but I try to tough out situations (which isnt the best) and on the days that I don't take it, I typically feel some anxiety. When I "give in" and take it, my anxiety or panic attack is usually at least a 7 on a scale from 1-10. Five years ago, I took Zoloft for anxiety for 6 months. I remember feeling good on it, but the initial side effects and sexual side effects were awful. So, my new doc recommended an SNRI instead. I also have POTS (Postural Orthostatic Tachycardia Syndrome). This basically means that my autonomic nervous system does not function properly and my heart rate accelerates when I stand or stand for long periods of time. It's a collection of symptoms including tachycardia (fast hear rate), palpitations, heat and excercise intolerance and anxiety among others. So, there is a lot of overlap between GAD and POTS, but in any case, I need to treat the anxiety since there is no one treatment for POTS, I need to treat the individual symtpoms.
I understand that everyone reacts differently to medications. I am just curious to hear about any personal experiences you may have had with Pristiq and/or Effexor. My doctor has been favoring Pristiq but with no real valid reasons why and when I researched the two, based on clinical findings, I'm not sure that Pristiq is really better than Effexor. Thoughts?