I took them for many years before I switched to celebrex, then oxy. (well first to
celebrex, a heart attack, then morphine then fentynol then oxy) Taper
off them to avoid those horrible tylenol headaches and you shouldn't have too much trouble. Good Luck!
I was on fentynol for three years 150mcg/day, and quit those cold turkey. I was grumpy and tired for three days and that was about it. A month later I was put on oxy and have been on it ever since- (480g/day now) ten years now.