I recently tested positive for cocaine, in a drug test...
I can't imagine what happened; but, after research I read Hep c can cause a false positive and I was taking Doxycline, Microbid, Flexeral, vicadin, dexadrine...could any of these caused the positive for cocaine?

The guy from the lab asked me only about the dexadrine and I had a script for it and then he asked me if I had been to the dentist lately...I told him no and he said I was positive for cocaine and hung up.
It was a post workers comp drug test and I was dismissed.