... a cervical fusion. Is this a high amount and how difficult will the withdrawal be? I'm scheduled to go into the hospital for 3-4 days to be detoxed and I'm terrified as I don't know what to expect. I was not aware it was addictive. My liver enzyme level is elevated so I was sent to a pain management doctor. I take percocet and knew it was addictive but a necessity for my chronic pain from a fall which caused permanent damage to my rotator cuff and shoulder. The shoulder has been replaced but nothing healed to it.