I started fentanyl patches 25 mil today at 1 pm i have been on percocet for 6 yrs now at 10 mil x5 a day was working but lately it wasnt as effective. I have fybromyalgia as well as arthritis in hands neck lower back have spinal twisting and also disc issues i also suffer from migraines that last weeks. So it is now day one 6 hrs after first dose and i am getting no relief just took 10 of percocet first time today am weary tho of taking both although doc says i can is anyone else on a similar regimen? and how long does it take for pain to go away and will the patch keep opiad withdrawel away? thanks for help debbie:confused.