I have had to take employment drug screens off and on since 2015. Clonazepam has never shown up on my drug screen results, even taking a dose only a few hours before my screening. I always show up with the prescription bottle in my purse imcase it would show up. It does not show up at all. At one point I was even taking three 1mg a day. Could this be a sign that there is a problem with my metabolism or other issues? Feeling too embarrassed to even ask my own doctor, I had since requested to slowly cut back. To two .05 milligrams per day. I am concerned.