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MDMA (3,4-methylenedioxy- N-methylamphetamine), most commonly known today by the street name Ecstasy (often abbreviated E, X, or XTC), is a semisynthetic member of the amphetamine class 2 of psychoactive drugs, a subclass of the phenethylamines.3 MDMA also falls under many other broad categories of substances, including stimulants, psychedelics, and the empathogenic-entactogens.
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