chronic pain
"I have chronic pain in my lower back, and this medication enables me to get out of bed each day and keep working. That said, I don't get the full 12hrs sustained release. For me its more like 9-10hrs relief before I feel it progressively wearing off (and supplement with a small dose of IR Oxycodone). Side effects? Finding the right dosage was tricky. Too little and I was in pain, but too much and I could barely keep my eyes open to function. I was fatigued the whole time and itchy all over. I've now found a stable balance between pain relief and side effects that is workable with the rest of my life. 
Overall, it's been a miracle medicine for me to relieve debilitating pain. I'm still in my 30's and am too young to be feeling 80 every day."