National Association for Alcoholism and Drug Abuse Counselors (NAADAC) Practice Exam

Cocaine is classified as a stimulant because it primarily increases the activity of the nervous system. This classification is based on its ability to enhance alertness, increase energy levels, and elevate mood by acting on the brain's dopamine pathways. Cocaine achieves this by blocking the reuptake of neurotransmitters like dopamine, norepinephrine, and serotonin, leading to prolonged stimulatory effects.

Stimulants, unlike depressants or relaxants, promote a heightened state of arousal and can result in increased heart rate, elevated blood pressure, and heightened energy. The temporary euphoria and enhanced mental clarity experienced by users further supports the classification of cocaine as a stimulant. The substance does not induce hallucinations or relaxation, which differentiates it from hallucinogens and relaxants, respectively. Therefore, the classification as a stimulant accurately reflects its effects on the body and brain.