Why would meth show up on drug test if I don't do it?

Methamphetamine is a compound which has 2 stereoisomers. One of them is psychoactive and the other is not. It is possible that you ingested the l-methamphetamine and it will test positive for methamphetamine and amphetamine. read more

The other answer is correct, I would like to add that drug tests do not test for the actual drug in your system but the way the body acts if you had such drug in your system. Such as looking for certain metabolites. read more

Rielee, if you mean methamphetamine, any amphetamine has the potential to give a false positive for methamphetamine, from cocaine to medications for ADHD, like Vyvanse, Ritalin and also rx diet pills like phentermine and didrex. Employers, and drs have no idea how inaccurate drug testing can be. read more