#psychotropic substance
- Amphetamine — A synthetic chemical substance with an aromatic amine structure, possessing a potent stimulant effect on the central nervous system by enhancing the release of dopamine and norepinephrine. From a clinical perspective, it is used under strict medical control to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy, but carries a high potential for abuse, severe psychological dependence, and cardiovascular toxicity, being legally classified as a controlled psychotropic substance.