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Hello again I am glad the expert has agreed with my second opinion, in that nyquil might test positive for alcohol under certain types of testing. At this point we do not know what type of alcohol test you are talking about. If you respond I will help you with specifics. A positive alcohol test would not be negated by finding nyquil components in your system if you were still high enough in acohol content to be illegal, just as one example. The results would not be a false positive, because it would be alcohol testing positive for alcohol.
Yes, nyguil can make you fail an alcohol test.
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