I am a MS patient, currently I am prescribed vicodin 10/325's. Once a week I take a Avonex injection. I am concerned about damage to my liver from all the acetomenaphine. Avonex can also cause damage to the liver. Would a pain reliver(time released)like Oxycontin be a better solution for pain...rather than taking, on average, 5 or 6 of the vicodin?