Does methodone show on drug test?

It really depends on if it is a "10 panel" drug screen. Meaning it tests for 10 different drugs and their metabolites. It will test for all common drugs and methadone. If they use a lesser panel drug screen, which is more common, it will probably test for opiates but not methadone. Methadone is not an opiate (its synthetic) therefor it must be tested for specifically.