I am a 43 year old white male. have a question about the affects of Adderall when something that is eaten causing heartburn (have had heartburn since high school) then taking 30mg adderall xr capsules and downing it with a 12oz orange juice. Wasnt trying to do anything but eat on the go. I take drug screens, and did an hours or so after this. I had heartburn afterwards, For the days before, 3 or 4 maybe I had taken nassal degon and sudifed. I know my adderall shows amphetamines and the over the counter have some meds in them that could cause false positive, but I have read earlier this week high acidic acids in the stomach could intesnify 5 times with amphetamines?? They say I tested posititve for something and they have said 3 months ago it was for meth, I know it wasnt, got a hair test and proved they were full of sh?t. They are saying that again and I am sick of this 6th time, I just want to know would acids cause meds and other over the counter meds, which I know now is freaken Dimethamphetamine is I meth. am I screwed if they showed 800ng from adderall/