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False Positive Urine Drug Test For Phenobarbital

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Candace Says:
 
I have had 2 urine drug screens w a 2 1/2 wk difference between. The first GC/MS + phenobarbital >1000ng & the 2nd + 816ng. I've never taken this drug before. The meds I do take are: gabapentin, tramadol, ibuprofen, sumatriptan, omeprazole. Please help!

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Verwon Says:
 
Nothing you've listed is known to cause false positives for any type of Barbiturates, including Phenobarbital.

http:/­/­www.medschat.com/­wiki/­Phenobarbital/­

Has your doctor had any ideas as to what may be causing it? Did you take anything else, even over the counter products?

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Karen Says:
 
Not true. Google NSAIDs (ibuprofen) and phenobarbital. Several stories from legitimate sources about them causing a false positive for barbiturates. I know because I am arguing with my doctor over this very thing right now. I take Adderall and am required to get drug tested. She said another positive test result for barbiturates (which I DO not take) means she can't refill my rx. Not sure what I'm going to do. The lab declined to look into it, as I've heard is the case in these situations. I ordered a home test to see if I could duplicate the results. Ask your md for a gc/ms test to confirm the results. I demanded that for the next test in a few weeks.

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