I am currently on house arrest for a dui. Before the moniter was put on the program the officer told me I was approved to take OTC Excedrin for migraines and OTC Unisom. I took more than I should, I was having a really hard time sleeping that night. The next morning my PO calls and wants me in for a drug test. I pee, fail for Methadone (whatever that is) and then 10 mins later they say I'm fine a faint line showed up. I googled what could make you fail a drug test for Methadone and low and behold the approved Unisom is the first thing that popped up. What makes it show up as a positive? Obviously I haven't taken anymore since but I want to bring this to his attention. It shouldn't be approved if this can happen. I'm a drinker, I'm not very knowledgeable about drugs. Also. I am curious, if I haven't taken any since Thursday and I go in again on Tuesday will this still be an issue?