Mephedrone is only one of hundreds of designer drugs that come in powder form or a tablet. It is a synthetic stimulant that produces similar effects to cocaine, amphetamines or MDMA. Street names include "drone", "M-CAT" and "meow meow". It is often passed off and sold as true bath salts. In the labs, Mephedrone can be quantitated in plasma, blood or urine by GC-MS. Field agents use a Mephedrone Reagent PDT like this reagent test from Mistral. Each test pouch contains an ampoule, a sampling spoon and a color chart.