11 Apr 2011
If they test for alcohol it could show up as well depending on the time you took the medicine and the time you took the drug screen. Nyquil has a high amount of alcohol in it. It also can contain pseudoephedrine which can show positive as an amphetamine. If you do get a false positive, ask for confirmation by GC-MS-gas chromatograph-mass spectrometry. This test is more expensive and you may have to pay for it yourself but it will differentiate the false positives. It is used to confirm or dispute false positives. It is extremely accurate.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Codeine/Promethazine - if someone took one teaspoon of a cough syrup with codine, would they fail a?
... drug test and for how long?
3 answers • 27 Feb 2010
I have the most terrible cough. I took Robitussin Cough gels about an hour ago. My cough is still going strong. Can I take cough syrup now or do I ...
1 answer • 23 May 2010
... showing false positive for meth?
2 answers • 26 Sep 2010
1 answer • 10 Feb 2011
... disease and this is what I am told caused it. Nobody believes Me and Im trying to find some proof to show them Im not crazy. Help Me Thanks
3 answers • 3 Apr 2013