Stress Center Peer Support

I was just switched from brand name regular Paxil 20mg tabs to Paroxetine CR (Mylan Labs). I had symptoms the last time I was changed to the generic Paroxetine 20mg a few years ago and went back to the brand. I'll try the Paroxetine CR and see how it works. Has any had any problems with the new Paro...

How long should someone take an SSRI for panic disorder? Can they be taken indefinitely? Any idea of the percentage of people that lose efficacy using any SSRI long term?
Thanks, Joe