Venlafaxine
"I love it. It's so much better than the other 2 I tried that made me feel like a zombie and had side effects.  Effexor XR has helped me and still does help me to not have the anxiety/panic attacks that I was experiencing before.  It's the best by far.  I highly recommend Effexor XR for anyone with bad anxiety & panic attacks.  It's absolutely the best."