Which drug is classified as a depressant?

The choice of alcohol as a depressant is valid because it is known for its ability to slow down the central nervous system, leading to effects such as relaxation, drowsiness, and decreased inhibition. This classification reflects the way the drug impacts brain function and body responses. Depressants generally reduce neural activity and slow bodily functions, contrasting with stimulants, which increase activity.

In contrast, cocaine and amphetamines are classified as stimulants because they increase brain activity and can enhance feelings of alertness and energy. Marijuana, though sometimes considered under a separate category due to its varying effects, is typically recognized for its psychoactive properties that can have both depressant and stimulant-like effects, but its primary classification does not align with that of alcohol as a depressant.