Can Nyquil or Benadryl cause a false positive for methadone?
Question posted by Mmc1983 on 25 May 2011
Last updated on 25 May 2011 by suzanne66
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Yes, the dextromethorphan in Nyquil and the diphenhydramine in Benadryl could both give false positives for Methadone
Hey Mmc,
The following lists some of the common medicine/conditions that can cause a false positive for opiates:
https://www.drugs.com/article/false-positive-drug-tests.html
You will see that Nyquil can cause a false positive for opiates as well as amphetamines.
Hope this helps,
Laurie
Related topics
benadryl, nyquil, methadone, drug test
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