I take Subutex because I had allergic reaction to Suboxone. My past three drug test have shown up that I had naloxone in it and I know I haven t take Suboxone. So after the second test I thought I would see if it was bs. I took pee from a clean person and put Subutex in it to c what would come back. They said it had naloxone it it also. How can that happen? I wondering if someone at Dr office is tampering with my test.