This question was answered on Wed 09, Feb 2011 05:48pm by Dr Vinod, MBBS,FcGP

which over the counter drugs could make you fail a urine drug test?

Asked by kaylindmerc (Female; 49 ) on Tue 10, Aug 2010 03:30pm

which over the counter drugs could make you positive for a urine drug test ?

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Answer by Dr Vinod, MBBS,FcGP   on Wed 09, Feb 2011 05:48pm:

Hello kaylindmer, There are many such drugs. phenylephrine hydrochloride is the commonest medication present in many anti cold and flu combinations which will fail a drug urine test. There are many cough syrups containing codeine and other pain medications with morphine group in it. Whether your drug screen turns up positive for opiates depends on what medications you take, and how much is in your system at the time of the test. There are many steroids as in oral contraceptives and other combinations which will make your urine test fail. Discuss with your physician before going for the test. Take care!

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Comment by Vincent on Wed 18, Dec 2013 07:32am:
Will amoxicillin and naproxen make u fail urine test for job

Comment by shelsta larsen on Wed 19, Feb 2014 12:29pm:
Hi i had taken a pre- employment drug screen and came out positive for meth but i honstly never done that in my life. I was on a whole lot of meds around the time of the test for the flu and broncitis what could have made my test say this because it's not right it does not look good on my records im not happy please help me...

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