I was on percocets 325 for 6 months, then on the 24mg of fentanyl for 1 month, now I'm in week 2 of 12 mg, and ready to not put another one on, i realized that the one I had on wore off when I couldn't sleep last night, and made the decision not to put one back on. it had to happen one day. I don't feel too bad, my arms hurt, not sick, but had a hard time sleeping. I'm considering asking for a wd drug like clonadine... not sure, going to talk to the pains drs about it.