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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Ibuprofen Cause False Positive Drug Test Results?

Hi, my husband smoked weed and had positive test at work, he has completely stopped around 8 weeks ago, he went back to work after a negative test, he was given another test and it came back positive! I know he hasn’t smoked, why has this happened? He takes ibuprofen for a painful elbow, could this give a positive reading? He’s been dismissed and can appeal but we are at a loss as to what to do. Thank you
posted on Tue, 3 Oct 2017
Twitter Thu, 19 Jul 2018 Answered on
Twitter Mon, 23 Jul 2018 Last reviewed on
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General Surgeon,  's  Response
Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.

Ibuprofen never cause false positive results. Some trace amounts can remain even after two months and thus caused a positive report. You can re do repeat test and claim the innocence.

Thanks.
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Does Ibuprofen Cause False Positive Drug Test Results?

Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Ibuprofen never cause false positive results. Some trace amounts can remain even after two months and thus caused a positive report. You can re do repeat test and claim the innocence. Thanks.