no the test nowadays can tell the difference between all opiates. ie. methadone(Diskets, Dolophine, Methadose). hydrocodone(lortab,lorcet,vicoden,norco,vicoprofen)....
No, methadone will only show up as methadone because it requires its own specific test used to detect it. Hydrocodone will show up as an opiate on a drug test.