Hi there ~
I understand your concerns. Adderall
is known to cause heartburns or gastritis
if taken in empty stomach. This is among the various side effects that the medication has. The drug obviously shows positive on a tox screen as you have been using the drug. I would suggest that you down your adderall with water instead of orange juice. It would be better to take you adderall from a good company and to avoid using it on empty stomach. False positives are very common and you might have to start using the medication as prescribed. Consult your doctor that prescribed the adderall to get a letter for your employer stating that the medication may show up as false positive for other drugs and this is not a cause of concern. Your employer may also need to consult with and reconfirm this with your doctor and ultimately everything will smooth out.
I hope this helps. Take care and have a lovely day!