If you regularly use DXM, can you fail a drug test?

I was reading on some site that you can get a false possitive for PCP, does anyone know if that's true or not?
jzzinator69 Reviewed by jzzinator69 on . DXM If you regularly use DXM, can you fail a drug test? I was reading on some site that you can get a false possitive for PCP, does anyone know if that's true or not? Rating: 5