Hi. I need your help please. I have taken Xanax over weekend but then I have found out that my school is doing some random drug testing (2 times in a week). I am being worried about how long does it take for the Xanax rug to leave out of my system so I would be clear of it and when the testing is done I would be fine. I would appreciate any and all of your help and information regarding this question. I am not prescribed Xanax, I have taken one of my friends and I am afraid that I would have problems because of this. thank you a lot.