Methylenedioxycathinones

Methylone, also known as '3,4-methylenedioxy-N-methylcathinone (MDMC'), is an entactogen and stimulant drug of the amphetamine, cathinone, and MDxx families related to 3,4-methylenedioxymethamphetamine (MDMA; "ecstasy"). It is the β-keto or cathinone analogue of MDMA. The drug is usually taken orally, but can also be administered by other routes.

Methylenedioxypyrovalerone (MDPV) is a stimulant of the cathinone class that acts as a norepinephrine–dopamine reuptake inhibitor (NDRI).

Butylone, also known as 'β-keto-N-methylbenzodioxolylbutanamine (βk-MBDB'), is a psychoactive drug of the phenethylamine, amphetamine, phenylisobutylamine, and cathinone families. It is the β-keto (substituted cathinone) analogue of MBDB and the substituted methylenedioxyphenethylamine analogue of buphedrone.

Ethylone, also known as '3,4-methylenedioxy-N-ethylcathinone (MDEC, βk-MDEA'), is a recreational designer drug of the phenethylamine, amphetamine, and cathinone chemical classes. It is the β-keto analogue of MDEA ("Eve"). Ethylone has only a short history of human use and is reported to be less potent than its relative methylone. In the United States, it began to be found in cathinone products in late 2011.

'''3',4'-Methylenedioxy-α-pyrrolidinobutyrophenone (MDPBP''') is a stimulant of the cathinone class developed in the 1960s, which has been reported as a novel designer drug. MDPBP is sometimes sold under the name "NRG-1" as a mixture with other cathinone derivatives, including flephedrone, pentylone, MαPPP and its higher homologue MDPV. As with other cathinones, MDPBP has been shown to have reinforcing effects in rats.

MDPHP ('''3',4'-Methylenedioxy-α-pyrrolidinohexiophenone) is a stimulant of the cathinone class originally developed in the 1960s, which has been reported as a novel designer drug. In the UK its slang name is monkey dust'''. It is closely related to the potent stimulant MDPV though with slightly milder effects, and has been used as an alternative in some countries following the banning of MDPV.

'''3',4'-Methylenedioxy-α-pyrrolidinopropiophenone (MDPPP''') is a stimulant designer drug. It was sold in Germany in the late 1990s and early 2000s as an ingredient in imitation ecstasy (MDMA) pills. It shares a similar chemical structure with α-PPP and MDPV, and has been shown to have reinforcing effects in rats.