I am currently on the fentanyl 50 patch and am finding that in between 24 and 36 hours, the patch wears off. And the bad thing is that it's not really the pain that gets me, but the withdrawls! I really like the fentanyl patch and want to stay on it, but my doctor seems really persistant about the 48 hours. He even prescribes me a bunch of breakthrough meds just to make it last the full 48 hours. My question is, wouldn't it just be easier to change the patch like every 24 to 36 hours instead? Is this a common problem among fentanyl users.