... Is cymbalta. I used to take zoloft, but my rheumatologist switched me to cymbalta, and it really was so much better for my fms pain. The trouble tho, my good old health provider(united health care) has classified cymbalta as a tier 3 drug, so that it costs 6 times more than tier 1 drugs. The tier 1 drugs are effexor,celexa,prozac,paxil, and zoloft. Does anyone have experience with these, for helping with fms pain??