Which drug belongs to the stimulant category?

Amphetamine is classified as a stimulant due to its ability to increase the activity of certain neurotransmitters in the brain, particularly dopamine and norepinephrine. This stimulation leads to increased alertness, energy, and concentration, making it commonly used in the treatment of attention deficit hyperactivity disorder (ADHD) and certain sleep disorders. Stimulants can also elevate mood and enhance physical and mental performance, which is why they are often abused recreationally.

In contrast, the other substances listed fall into different categories: mushrooms typically refer to hallucinogenic fungi, oxycodone is a prescription opioid that acts primarily as a pain reliever and depressant, and alcohol is classified as a depressant that slows down the central nervous system. Each of these substances has distinct effects, using different mechanisms within the body, which differentiates them clearly from amphetamines.