I have been on fentanyl patches 100mcg Q72hrs for quite some time with great results- Except that I keep losing the patches bc I sweat so much. Even after using skin prep and tegaderm, I couldn't keep them on if I want to work out and sweat profusely. Anyway, I asked my doctor what other options there were. He put me on MS Contin ER 60mg 2xday. I'm wanting to know what to expect?