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Do Oxymorphone, Atorvastatin, Oxycodone And Cyclobenzaprine Cause False Positive Result For Benzodiazepine?

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Posted on Wed, 9 Dec 2015
Question: hi I failed a drug test for benzo..I take oxycodone, oxymorphone,atorvastatin,ranitidine,cyclobenzaprine,hydroxyz hcl, metformin, ferris sulfate,lisinopril,ibuprofen.i haven't took anything else.please help getting violated my last month of house arrest
the only thing different I have started taking is the atorvastatin,ive had metformin but up dosage 2 weeks ago after told my sugar was up., the past 2 weeks I have tried to take my meds regular because I was going for follow up on cholesterol, and metromin for my sugar being up and ferrus sulfate because I'm bou to have surgery
doctor
Answered by Dr. Dr. Matt Wachsman (1 hour later)
Brief Answer:
We dont know

Detailed Answer:
sertraline and daypro are known to cross react
however these account for under half of the false positives we see with the immunoassay

hair testing and other mass spectroscopy tests are less likely to misfire...a LOT less likely
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Dr. Matt Wachsman (18 minutes later)
I don't understand. what is sertraline and daypro?
doctor
Answered by Dr. Dr. Matt Wachsman (59 minutes later)
Brief Answer:
what drugs can make a benzodiazepine urine false positive.

Detailed Answer:
It isn't easy if the test is done quite well. There are not very often false positives.

In the immunoassay test, the drugs sertraline (ZOLOFT) and DAYPRO will give a false positve for benzodiazepine. If you take those, the urine test will show up as benzodiazepine even if you are not taking it.

HOWEVER, the test can come up positive in those who are not taking zoloft nor daypro and we don't know why; this may happen up to 10% of the time.
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Dr. Matt Wachsman

Addiction Medicine Specialist

Practicing since :1985

Answered : 4214 Questions

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Do Oxymorphone, Atorvastatin, Oxycodone And Cyclobenzaprine Cause False Positive Result For Benzodiazepine?

Brief Answer: We dont know Detailed Answer: sertraline and daypro are known to cross react however these account for under half of the false positives we see with the immunoassay hair testing and other mass spectroscopy tests are less likely to misfire...a LOT less likely