7 Drug Categories
(1) Central Nervous System (CNS) Depressants. CNS depressants slow down the operations of the brain and the body. ...
(2) CNS Stimulants. ...
(3) Hallucinogens. ...
(4) Dissociative Anesthetics. ...
(5) Narcotic Analgesics. ...
(6) Inhalants. ...
(7) Cannabis.