I tested positive for THC this week even though I haven't smoked marijuana in over two years. I did take 1 Aleve and 2 Ibuprofens the night before the test and then 3 ibuprofens that morning because of a sore knee. After testing positive around 11am, I knew it had to be wrong so I bought a home drug test kit and tested clean at around 7pm the same day. I even went to a "doc in a box" type walk-in urgent care facility the next day to have a more accurate urine screen performed and I got the results back today and they were negative, too. So again, my question is, could either the Ibuprofen or the Aleve, or even a combination of both have produced a false positive for THC? Please help me so that I can avoid this in the future...View Thread