Library mbdb A rare entactogenic drug and analogue of MDMA possibly first synthesised by David Nichols. Potentially less potent than related drugs of it…

Library mda MDA is a synthetic entactogen of the amphetamine class that produces stimulant and mild psychedelic effects alongside its empathogenic prop…

Library mdai MDAI was developed as a putatively non-neurotoxic MDMA analogue, but research indicates it may still cause neurotoxicity when combined with…

Library mdea MDEA is a Schedule I controlled substance in most countries. The substance is characterized by a more sedating, 'stoning' quality compared…

Library mdma MDMA is a classical entactogen of the substituted amphetamine class, first developed in 1912 by the pharmaceutical company Merck. It remain…

Library mdmpea MDMPEA is an obscure research compound patented by Merck in 1956 as an antitussive but never marketed clinically. Animal studies showed onl…

Library mdoh An entactogen, stimulant and psychedelic first synthesised by Alexander Shulgin, MDOH is an analogue of MDA. Described as highly psychedeli…

Library mdpa An obscure substituted methylenedioxyphenethylamine with practically no history of human use. Its pharmacological profile is largely unknow…

Library mdphp MD-PHP (3,4-methylenedioxy-α-pyrrolidinohexanophenone) is a synthetic cathinone one carbon longer than MDPV, often sold as brown HCl powder…

Library mdpv MDPV is a synthetic stimulant of the cathinone and pyrrolidine classes, first developed in the 1960s by Boehringer Ingelheim as a potential…

Library meai MEAI, also known as 5-methoxy-2-aminoindane (5-MeO-AI) and by its developmental code name CMND-100, is an entactogen-like psychoactive drug…

Library methamnetamine A selective serotonin releaser, which also shows some light psychedelic activity. Almost always taken with a stimulant, to cause euphoric e…

Library methcathinone Methcathinone is a synthetic stimulant of the cathinone and phenethylamine classes. First synthesized in 1928 in the United States, it was…

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Library methylk Data are extremely scarce: only one formal PiHKAL trial (100 mg oral produced no overt effects) and a handful of 2025 forum / Reddit self-e…

Library methylone Methylone is a synthetic stimulant and entactogen of the cathinone class. First synthesized by Peyton Jacob III and Alexander Shulgin in 19…

Library mexedrone Mexedrone is a research chemical with very little history of human use prior to 2015. It was marketed as a legal alternative to mephedrone…

Library nep NEP is a substituted cathinone that produces stimulating, euphoric, and mildly entactogenic effects. It first appeared on the research chem…

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Library nm2ai NM-2-AI is a relatively obscure synthetic stimulant in the aminoindane class. Chemically, it is 2-aminoindane with N-methyl substitution an…

Library pma PMA is extremely dangerous and notorious for its high toxicity and risk of fatal overdose at doses only slightly above the common range. It…

Library pmma para-Methoxymethamphetamine (also known as 4-methoxymethamphetamine, 4-MeOMA, inaccurately as "4-MMA" (which should instead be reserved for…