3',4'-Methylenedioxy-α-pyrrolidinohexiophenone, also known as MDPHP or Monkey Dust, is a synthetic entactogenic stimulant of the Substituted cathinone class, and its commonly reported effects
include stimulation, disinhibition, increased libido, compulsive redosing, and euphoria when administered orally, insufflated or smoked. It is closely related to the potent stimulant MDPV though with
slightly milder effects. MDPHP is thought to act primarily as a potent norepinephrine-dopamine reuptake inhibitor (NDRI). The result of this inhibition is an enhanced and prolonged concentration and
resulting post-synaptic effect of dopaminergic and noradrenaline signaling at dopamine and norepinephrine receptors on the receiving neuron. .