Fentanyl citrate 400 mcg lollipops for break thru pain was really working for me especially when I was taking medicine for mercury detoxing. I was also taking norco 4 times a day. My pain level was very high with detoxing, cfs and fibro. I went to get a refill for the fentanyl and medicare denied it because it was not a drug for fibromyalgia. My doctor sent a repeal and it was also denied. They listed that I should take drugs like Lyrica, Cymbalta,Oxycodone, and morphine. I could not believe that it was denied for fibro. I have tried all the drugs above except morphine. My doctor listed this on his repeal. It was working so well for me. I think it was the cost. The drug list price is between $440 and $680. Have anyone else been turned down for expensive drugs because of the cost? I did not have this problem when I was on my husband insurance. I started medicare in March. I also had it refilled once before and purchased 2 boxes. On my second refill it got denied. Just wondering if anyone else has this problem. What do others take for break thru pain?