Jbo, Paxil is an anti-depressant in a class called an SSRI, it is not a benzo.
I took Paxil about 8 years ago for a couple of years for panic attacks I was having back then, it worked but had some really weird side effects. Very, very vivid dreams (like living a second life), weight gain, sexual side effects (not in a good way). Like I said it worked on the panic attacks, I couldn't have cared less if the world blew up (another side effect, no emotions what so ever), but the other problems it caused finally prompted me to get off it. I slowly tapered and did not have a problem getting off the drug, some do though but like anything else it is so individual. I can say that getting of Paxil was no where as difficult as getting of a benzo, it was a piece of cake compared to this "challenge"
Have you tried other non-drug methods to combat your anxiety, I have been working with a good therapist that is anti-drug and has alot of good ideas to build from. I know that it isn't a quick fix but probably a better fix in the long run.
Hope this helps,