My Dad (84) has been on the Fentanyl patch for several months (at 50 mg now), and it's working great for him!! He used to sleep all the time when he was on Vicodin, but now he's a lot more alert and his pain is pretty much under control. Doing better than he has in a while. Tools around the house in his wheelchair and does some stuff for himself now. Big improvement!!! Just thought I'd throw in a success story here regarding the fentanyl patch.