Can any of my medications?including Keppra, Valium, Depakote, Topamax, methadone, Ritalin, and famotidine?cause a false positive for illegal drugs on a urine drug test, or will they show up on the test as themselves?
Some of your medications will show up as themselves: Valium will flag as a benzodiazepine, and methadone has its own specific test. Ritalin and occasionally famotidine can sometimes trigger a false positive for amphetamines on standard screens. Keppra, Depakote, and Topamax typically do not show up or cause false positives. If you have a test coming up, simply provide your prescriptions to the laboratory. Confirmatory testing can easily distinguish your prescribed medications from illegal substances, keeping your results clear and accurate.