The thing is, I haven't done meth recently enough for it to show (over a week ago), and that was my first and last time doing that shit. However I am perscribed adderall and have been taking this, which is obviously similar. The test has a separate detector for amphetamines and methamphetamine, both came up positive, I took the test twice even. Could it be wrong twice? My parents are going to send it into the lab, but this thing is supposed to be 99% accurate even before the lab. What if the lab says they detected meth as well as adderall, too? Could meth possibly still be in my system? And if so, and the lab comes back positive as well, should I just keep blaming it on adderall?