Structure-Activity Relationships of MDMA and Related Compounds: A New Class of Psychoactive Agents?
Ecstasy: The Clinical, Pharmacological and Neurotoxicological Effects of the Drug MDMA January 1, 1990 David F. Nichols, Robert Oberlender 6 citations
Evidence from drug discrimination studies suggests that MDMA and similar substances form a distinct pharmacological class called entactogens, separate from other known drug classes. Results from multiple laboratories, though still incomplete, support the view that entactogens have a unique pharmacology, as demonstrated by their discriminative stimulus properties, including training dose effects and patterns of complete substitution that differ from those of other compounds.