Dave,
I would have to say that telling your doc not to allow you to refill is the first step, the second step would be to tell him you think you have become dependant on the pills and he will treat your pain with non-narcotic meds. Oh BTW Tramadol is addictive as heck also but in a different way so don't fall for (it's not an opiate) it technially isn't but it works on the same receptor of the brain so you can become dependant on them!!