if you fail a drug test for each one
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can L-Phenylalanine,L-Tourine,L-Tyrosine or L-Glycine cause a false pos in a urinalysis for Methamph
Can these named above cause a drug urinalysis to test positive for Amphetamines? For Methamphetamine?
1 answer • 13 Aug 2009
... back positive for cocaine and negative for amphetamine. I have not done any cocaine but take an amphetamine daily, is their an explanation for ...
1 answer • 26 Oct 2009
one of my employees tested positive for amphetamines and methamphetamines following some consistently bizarre behavior. She presented a ...
2 answers • 25 Oct 2011
1 answer • 17 Oct 2012