Was prescribed 3 fentanyl patches and instructed to replaced 1 every 3 days. Why when I applied the prescribed fentanyl patch did it work at relieving most the pain the first day but by day three was not effective for my back pain. What was really odd was when I went in for the required urine drug screening every three days they told me the fentanyl did not show up in any of the test even though I showed them I was wearing a patch I inquire as to whether it was somehow possible for them to be using the wrong type of testing or the medication to enter my system all in the first day leaving none for the next two Dr. said no and yet I continued to use my last patch only to get the same results. I was puzzled as to why this was happening and asked if there was another form I could use instead. My doctor replied no. It wasn't until I got the idea a couple of weeks later to look it up and found it does come in a pill form did I get the disgusting feeling that he must have thought I was a drug seeker or something. I know the situation was very odd or suspicious but I didn't have the answers. It was great to be relieved from the suffering back pain of a decade. I want to just skip the patch because maybe it enters my metabolism too quick or something. Why couldn't I tried another way? I'd sure like to hear from anyone else who's had a similar experience. I don't know how I could be the only one.