Blood Drug Testing

Can wellbutrin 150mg cause a positive drug test for cocaine?

I took a drug test and it showed up positive for cocaine and i have not been around it whatsoever. Iam currently taking wellbutrin 150mg, Straterra100mg, Trazadone300mg and am curious to know if that would be effecting the drug test. Iam very concerned what could be breaking down in my body.

Public Comments

1. I'm on the same dosage of Wellbutrin as you are, and I haven't experienced that problem and my doctors have never mentioned to me that it could happen. Maybe you should call your GP and ask them what could have caused it?
2. interesting . . . time to talk with the pharmacist
3. Definitely not. None of those drugs will make you test positive for anything on a typical drug screen. I perform drug tests on others as part of my job and also have taken wellbutrin myself. The positive test isnt related. Ask to be retested, or ask to take a hair follicle test, as hair follicle screens show drug use over a longer period.
4. It is also possible that they mixed your test up with another person's. The labs are not infallible. If you know you didn't use cocaine that seems like a real possibility. Sorry that happened to you.
5. I wouldn't know why Wellbutrin would cause such a result. It does have something to do with Dopamine but other than that... I'm glad you listed the other medications you're using however. In lab tests, Monkey's were unable to distinguish between Cocaine and Straterra at low doses. Chemically they're not the same however (unlike Ritalin and some other ADD/ADHD medications I mean). I'd be more convinced it had more to do with the Straterra than any other medication you mentioned. I found this on common drug testing for Cocaine in case it's helpful... "Most drug tests that check for cocaine look for benzoylecgonine, a product of the body's metabolism of the drug. Other illegal drugs, including opium and psilocybin, do not produce this byproduct and so can't cause a false positive for cocaine. Rarely, marijuana may be laced with other substances; accidentally using cocaine in this way could make someone test positive. However, benzoylecgonine can only be detected in urine for around three days after using cocaine." Some medications and medical conditions can sometimes trigger a false positive for cocaine. These include; Amoxicillin, Topical anesthetics derived from cocaine (does not include lidocaine or novocaine), Liver disease, Kidney disease, & Diabetes.