Some people say it goes 20-40 mins less in duration but its definitely been proven that MDA is more dopaminergic compared to MDMA:
3,4-Methylenedioxyamphetamine (MDA) analogues exhibit differential effects on synaptosomal release of 3H-dopamine and 3H-5-hydroxytryptamine.
Dennis J. McKennaCorresponding author contact information, ∗, X.-M. Guan∗, A.T. Shulgin†
∗ Department of Neurology & Neurological Sciences, Stanford University Medical Center, Stanford, CA 94305, USA
† Department of Neurology & Neurological Sciences, Stanford University Medical Center, 1483 Shulgin Road, Lafayette, CA 94549, USA
Just on paper in case anyone doubted that but surely everyone could feel that is true. 8)
The effect of various analogues of the neurotoxic amphetamine derivative, MDA (3,4-methylenedioxyamphetamine) on carrier-mediated. calcium-independent release of 3H-5-HT and 3H-DA from rat brain synaptosomes was investigated.
Both enantiomers of the neurotoxic analogues MDA and MDMA (3,4-methylenedioxymethamphetamine) induce synaptosonal release of 3H-5-HT and 3H-DA in itro. The release of 3H-5-HT induced by MDMA is partially blocked by 10−6 M fluoxetime. The (+) enantiomers of both MDA and MDMA are more potent than the (−) enantiomers as releasers of both 3H-5-HT and 3H-DA. Eleven analogues, differing from MDA with respect to the nature and number of ring and/or side chain substituents, also show some activity in the release experiments, and are more potent as releasers of 3H-5-HT than of 3H-DA.
The amphetamine derivatives (±)fenfluramine, (±)norfenfluramine, (±)MDE, (±)PCA, and d-methamphetamine are all potent releasers of 3H-5-HT and show varying degrees of activity as 3H-DA releasers. The hallucinogen DOM does not cause significant release of either 3H-monoamine. Possible long-term serotonergic neurotoxicity was assessed by quantifying the density of 5-HT uptake sites in rats treated with multiple doese of selected analogues using 3H-paroxetine to label 5-HT uptake sites.
In the neurotoxicity study of the compounds investigated...
More at:
http://www.sciencedirect.com/science/article/pii/009130579190005M
http://www.sciencedirect.com/science/article/pii/009130579190005M