Warren,
I was on the patches for quite a while...no more than 75 if I remember correctly. Like Gary, the only real problem I experienced was the constipation, and I did get a little drowsy while sitting around the hospital or home. I began weaning myself by going to weaker patches as my pain improved and got off completely a few months after treatment ended. I did get a little depressed when I finally got off of them, but it passed quickly.
Best of luck...it sounds like you have it together.
Danny G.