psychoactive drug (a drug that can produce mood changes and distorted perceptions)
drug (a substance that is used as a medicine or narcotic)
chemical compound (a substance consisting of two or more different elements chemically bonded together in a fixed proportion by mass)
Drugs, hormones and biological mediators, the class with DiseasesDB code "28813"
Cannabinoids (the plant genus in the Cannabaceae plant family, Urticales order, Hamamelidae subclass)
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