I am in remission for cancer and now have chemo induced peripheral neuropathy, which is extremely painful and causes a lot of stress & anxiety. I take Xanax every day and have for over 15 years. I know i take my medicine as prescribed everyday!! My doctor recently asked for a urine sample for drug screening, due to where my cancer was located I find it difficult to pee on command and asked for a blood test.
This was three months ago and she just told me, the blood test was negative for the Xanax. The manufacturer is Dava pharmaceutical which has a lot of bad press online. I don't understand how this is possible. Has anyone ever had a false negative for a drug screen on blood test?