What are illicit drugs?
Illicit drugs are drugs which are used in an unlawful manner for purposes other than those for which they are indicated or in a manner or in quantities other than directed. They can be over-the-counter medications or prescription medication. Illicit drugs can include sleeping pills, alcohol, heroin, marijuana, narcotics, cocaine, steroids, inhalants, methamphetamine, amphetamines, and hallucinogens.