alpha-PVP is a stimulant compound developed in the 1960s and related to pyrovalerone and is the ketone analog of prolintane. The mechanism of action is unknown for α-pyrrolidinopentiophenone. α-PVP is believed to act similarly to the designer drug MDPV, which acts as a norepinephrine-dopamine reuptake inhibitor (NDRI), although no substantial research on this compound has been conducted. α-PVPwas explicitly made illegal in New South Wales after it was illegally marketed with the imprimatur of erroneous legal advice that it was not encompassed by analog provisions of the relevant act. The legislative action followed the death of two individuals from using it; one jumping off a balcony, another having a heart attack after a state of delirium. It is sometimes the active ingredient in a drug often referred to colloquially as "bath salts".