Doctor insights on:
Will Benadryl Affect A Drug Test
I need allergys meds need a negative drug test my allergies are killing me can i take Benadryl (diphenhydramine) or zrtek ?
I took one tylonal pm the has 25mg of benadryl (diphenhydramine) in it. I have a pre employment drug test in 12 hrs whats the chance of a false positive for pcp.
False + UDS: Chances are very slim to none.Get a more detailed answer ›
No: It shouldn't show up in a home screening test. ...Read more
Is there a home drug test to test for diphenhydramine o.t.c. abuse? i suspect my husband is abusing it
Very doubtful: There's info here: https://en.wikipedia.org/wiki/Diphenhydramine But, I'm concerned too about your relationship. Suspicion is often as harmful as the behavior in question. Consider Couple's Therapy after a few prep sessions for you alone to learn how to communicate concern w/o blame. A test would do nothing to help resolve any problem. Best wishes 2U2. ...Read more
I took drug test today and it was positive for tca, I regularly take an OTC sleep aid with diphenhydramine. Couldn't have caused the false positive?
"tca"????: did you mean THC (marijuana or cannabis)? TCA medically usually means tricyclic antidepressant, and these are actually chemically similar to benadryl (diphenhydramine). If all that was done was a SCREENING test, there are lots of potential false positives, and if used for legal purposes, all screening tests should be confirmed with a more sophisticated test, usually gas chromatography/mass spectroscopy. ...Read more
It depends,,: It depends on what you're being tested for and how much benedryl you took. Apparently it may cause a false positive result for Methadone in some urine drug screens using competitive binding immunoassays, and if too much is taken, it can cause blurry vision, photophobia, heart failure, and death, but a lot has to be taken. Otherwise, there should not be much of a problem. Good luck. ...Read more
I took a drug test yesterday, and even though I don't use illegal drugs, I am fretting. I took one benedryl the night before. Is that ok?
It will not...: Attempting to foil a drug screen will just add misery for you--your employer or whoever is requesting the drug screen will see you not just a dope but also a liar (trying to hide/sabotage your drug test). So, it is better to come clean. If you have a problem, ask for help and you will get more respect that way. Be good. Be sober. Be drug-free. Be respected. Good luck. ...Read more
Yes : It can rarely cause a false positive pcp test. ...Read more
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