Yes, a white pill with Watson 540 on it is a VicodinM
Heroin, opium, and opium based painkillers (many prescription painkillers are) will all show up-- basically, any opium derivative. There are two kinds of opium derivatives. Opoids and Opiates. They are considered different and are both on a test. Codeine-Opiate. Morphine Oxycodone - Opiods