MDPHP (Methylenedioxy Pyrovalerone) is usually a synthetic cathinone that's been claimed to produce stimulant and psychoactive effects.MDPHP is believed to act principally to be a powerful norepinephrine-dopamine reuptake inhibitor (NDRI). Lessened re-uptake of norepinephrine and dopamine leads to better concentrations of The 2 catecholamine neurot