The three main categories of psychoactive drugs are depressants,stimulants,and

A) amphetamines.
B) tranquilizers.
C) hallucinogens.
D) endorphins.

Psychoactive Drugs

Substances that affect the mind, mood, or behavior by altering the brain's chemistry, often used for medicinal, recreational, or spiritual purposes.

Hallucinogens

Substances that induce alterations in perception, mood, and cognitive processes, often resulting in visual or auditory hallucinations.