| Noun | 1. | consciousness-altering drug - a drug that can produce mood changes and distorted perceptionsdesigner drug - a psychoactive drug deliberately synthesized to avoid anti-drug laws; mimics the effects of a banned drug; law was revised in 1986 to ban designer drugs dronabinol - psychoactive substance present in marijuana; used therapeutically to control nausea associated with cancer therapy drug - a substance that is used as a medicine or narcotic euphoriant - a psychoactive drug that tends to produce elation and euphoria hallucinogen, hallucinogenic drug, psychedelic drug, psychodelic drug - a psychoactive drug that induces hallucinations or altered sensory experiences tetrahydrocannabinol, THC - psychoactive substance present in marijuana |