I recently went to my pm dr. After three back inj. that did not work, they referred me to a surgeon, because they were out of options, This was on thur,They gave me a refill to start on the following tue. At that time they had me take a u.a. Which I know I will be positive. I already set up a app. With the surgeon they referred me too, even though my MRI shows many injuries, can they stop my paper prescription before I fill it? Yours truly, mr. Bad back!