I've been taking 5mg of methadone once a day for about 2 years. Its not prescribed to me. I've tried to stop taking it before but I'm afraid of the withdrawal because I've heard its horrible. But I found out I have to take a drug test for school so I went down to taking 2.5mgs once a day and 2 days ago I stopped taking it completely. I'm worried its going to show up on the test and I wont be able to get into school. Does anyone know how long it might be detectable in a urine test for such a small dose?