"i take the er form of the drug and percocet for the break through pain. i have inoperable arthritis in my neck. after two operations it has been decided that it won&#039;t kill me, but i will die with it. i rotate various drugs to avoid the dependancy and tolerance problems. i go to a medical school pain clinic and the care has been a life saver. i would strongly recommend anybody with chronic pain to go to a pain clinic. there is a lot of procedures that the average md is just not aware of."