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psychotropic substance

(SY-koh-TROH-pik SUB-stunts)

A drug or other substance that affects how the brain works and causes changes in mood, awareness, thoughts, feelings, or behavior. Examples of psychotropic substances include alcohol, caffeine, nicotine, marijuana, and certain pain medicines. Many illegal drugs, such as heroin, LSD, cocaine, and amphetamines are also psychotropic substances. Also called psychoactive substance.

psychotropic substance

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