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Trimethoxyamphetamines (TMAs) are a family of isomeric psychedelic hallucinogenic drugs. There exist six different TMAs that differ only in the position of the three methoxy groups: TMA, TMA-2, TMA-3, TMA-4, TMA-5, and TMA-6. The TMAs are analogs of the phenethylamine cactus alkaloid mescaline. The TMAs are substituted amphetamines, however, their mechanism of action is more complex than that of the unsubstituted compound amphetamine, probably involving agonist activity on serotonin receptors such as the 5HT2A receptor in addition to the generalised dopamine receptor agonism typical of most amphetamines. This action on serotonergic receptors likely underlie the psychedelic effects of these compounds. It is reported that some TMAs elicit a range of emotions ranging from sadness to empathy and euphoria.[citation needed] TMA was first synthesized by Hey, in 1947.[1] Synthesis data as well as human activity data has been published in the book PiHKAL.
The most important TMA compound from a pharmacological standpoint is TMA-2, as this isomer has been much more widely used as a recreational drug and sold on the grey market as a so-called research chemical; TMA (sometimes referred to as "mescalamphetamine" or TMA-1) and TMA-6 have also been used in this way to a lesser extent. These three isomers are significantly more active as hallucinogenic drugs, and have consequently been placed onto the illegal drug schedules in some countries such as the Netherlands and Japan. The other three isomers TMA-3, TMA-4, and TMA-5 are not known to have been used as recreational drugs to any great extent.
^Hey, P (1947). "The synthesis of a new homologue of mescaline". Quart. J. Pharm. Pharmacol. 20 (2): 129–134. PMID 20260568.
and 21 Related for: Trimethoxyamphetamine information
Trimethoxyamphetamines (TMAs) are a family of isomeric psychedelic hallucinogenic drugs. There exist six different TMAs that differ only in the position...
structure to the three isomers of methoxyamphetamine and six isomers of trimethoxyamphetamine. The isomers are 2,3-DMA, 2,4-DMA, 2,5-DMA, 2,6-DMA, 3,4-DMA, and...
are more potent than mescaline, as is its amphetamine homologue trimethoxyamphetamine. Escaline and proscaline are also both more potent than mescaline...
in the United States as it is a positional isomer of TMA (3,4,5-trimethoxyamphetamine). "Erowid Online Books : "PIHKAL" - #72 E". www.erowid.org. Archived...
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