4-Hydroxy-3-methoxyamphetamine (HMA), also known as 3-O-methyl-α-methyldopamine, is an active metabolite of 3,4-methylenedioxymethamphetamine (MDMA). It is substantially less potent than MDMA or 3,4-methylenedioxyamphetamine (MDA) as a monoamine releasing agent in vitro. Nonetheless, HMA has been found to induce the release of serotonin, norepinephrine, and dopamine with EC50Tooltip half-maximal effective concentration values of 897 nM, 694 nM, and 1450–3423 nM, respectively, and hence acts as a lower-potency serotonin–norepinephrine–dopamine releasing agent (SNDRA). The predicted log P of HMA is 0.6.
HMA molecular structure diagram from the DrugsPRO substance library.
Also known as: 4-Hydroxy-3-methoxyamphetamine
Classification
Chemical: Amphetamine
Psychoactive: Stimulant
Effects
Increased Heart Rate
Stimulation
Talkativeness
Alertness Enhancement
Light Sensitivity
Routes of Administration
No route information available yet.
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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HMA - Guide des substances DrugsPRO
HMA: 4-Hydroxy-3-methoxyamphetamine (HMA), also known as 3-O-methyl-α-methyldopamine, is an active metabolite of 3,4-methylenedioxymethamphetamine (MDMA). It is substantially less potent than MDMA or 3,4-methylenedioxyamphetamine (MDA) as a monoamine releasing agent in vitro. Nonetheless, HMA has be
