... showing false positive for meth?
Sudafed (contains pseudoephedrine) - false positive for amphetamines, meth and ecstasy
Nyquil, false positive for amphetamines, heroin, opiates, morphine, meth, ecstasy, methadone.
If you have your doctor´s prescription take it with you, and let them know before the test you are on this medication.
Best of luck and take care.
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