I was switched over to OxyContin a little over a month ago, no change at all. He kept me on the Percs and dropped the Methadone. He said when my body gets use to the OxyContin, he will switch me back to the Methadone. From what I have heard about those spinal stimulators, most of the time they do not work as intended and you have to go around with this thing implanted in the small of your back. It has been described as having someone squeeze, vibrate, etc your innerds. I have been cut open enough the past 4 years, so I basically told him what he could do with his stimulator and never went back! I do not recommend getting one of those.