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. .