Can I be blunt? Do you really think your doc does not believe in tolerance? EVERYBODY knows tolerance exists. He just doesn't want to UP your dose. And waving literature in his fact is gonna **** him off. "Well, doctor, this internet forum I posted to says tolerance really exists, and you're wrong...." LOL
Tolerance is so real that there are SEVERAL posts on this forum, as well as others, about how people take their opiate pills *exactly* as prescribed (e.g.