Following my back surgery, the Dr put me on Norco 5/325. I told him that the dosage was too little, that I had been on the 10/325 prior to surgery. So what does he do..... he puts me on Darvocet!?! I understand I am smaller person (104 lbs) but I am having trouble getting through to him that I need a stronger dose or stronger pain killer. I have been on Norco for several months and have built up a tolerance to the lower dose. How can I get through to him?