Years ago I had a kidney stone and ended up in the emergency room. I told them I couldn't tolerate opiates, so they gave me an IV, and sent me home with a bottle of pills to take for the next few days. The relief of pain was immediate, and as long as I took the pills, I was fine. There was no high associated with it at all, and I just drove home. They told me it was some kind of super-tylanol. I can't remember the name of it. I am going in for a minor procedure, and would...