Tag: Psychoactive drug

With more than 90% of adults in the U.S. consuming it regularly, caffeine is the most widely used psychoactive substance in the world. However, does its widespread social acceptance remove it from scientific classification? The question, **is caffeine a drug**, depends on its precise pharmacological effects on the human body.

First appearing on the recreational drug scene in the 1960s, MDA (3,4-methylenedioxyamphetamine) is a psychoactive substance with stimulant and hallucinogenic properties. In pharmacology, understanding **what is a MDA** is crucial, as it is chemically and pharmacologically related to the more well-known MDMA.