Answer: The Uniform Controlled Substances Act divides drugs into five schedules. Among other things, Schedule I includes certain psychedelics, heroin and ecstasy. The list of which drugs fall into each schedule is too long to discuss here, but those drugs in Schedules I and II have fewer legitimate medical purposes than those drugs in the higher numbered schedules. Schedule II contains drugs such as cocaine, amphetamine, methamphetamine, opium, oxycodone, and so on. Schedule III includes drugs such as steroids, barbiturates, ketamine, and others. Schedule IV includes benzodiazepines such as Xanax, Valium and Lorazepam. And Schedule V includes cough suppressants with small amounts of codeine, preparations with small amounts of opium, anticonvulsants and other drugs. Again, those drugs in the higher numbered schedules have more recognized legitimate medical uses than the drugs in the lower numbered schedules.