Hi- I have been on Xanax for over ten yrs for panic and agoraphobia. My dosage has been 1 mg.4x daily. I have done very well with this however, I was recently under much stress and had a set-back. I was told that the SSRI's are very effective for this problem and plan to speak with my doctor regarding it. One drug that was recommended is Luvox. Please feel free to e-mail me with any questions or support.