Will norvasc diovan hct Cymbalta metformin hct prilosec tenex glipizide actos lipitor plavix aspirin ec diphenhydramine oxycodone hcl show a false positive or THC positive?

Answer 1

THC is a cannabinoid substance that cross-reacts with dronabinol (Marinol), a cannabinoid used to treat nausea and AIDS-related wasting. Other substances have been reported to cause false-positives for THC. A rash of false-positive urine drug screens in newborns was shown to be caused by any of several unrelated ingredients of soaps used by some of the nurses to clean the babies before the samples were collected (medicalxpress.com/news/2012-06-baby-products-linked-false-positive.html). Enfavirenz, an anti-retroviral drug used to treat HIV (AIDS virus) causes false positives (pharmacologyweekly.com/articles/HIV-antiretroviral-efavirenz-marijuana-urine-drug-screen-false-positive), as do omeprazole (Prilosec), pantoprazole (Protonix), and the nonsteroidal anti-inflammatory drugs (NSAIDS) (cdn.intechweb.org/pdfs/28113.pdf). Hempseed oil products, which are legal, sometimes contain large quantities of THC contaminants, depending upon the source of the seeds (clinchem.org/content/49/7/1037.full). <br /><br /> Oxycodone is a semi-synthetic opioid that does not usually show up in screening tests for "opiates," but there are screening tests that are designed for it.