Alphamethyltryptamine
α
-methyltryptamine, also known as IT-290 or
AMT, is a synthetic
drug of the
tryptamine family. First developed as an
antidepressant, in the
1960s it was produced commercially for this purpose in the
Soviet Union. Like many other
tryptamines, at sufficent dosages it produces
psychedelic effects, which can last for up to 18 hours. It also acts as a
monoamine oxidase inhibitor and a
stimulant, the latter property possibly being related to similarities in chemical structure to
amphetamine. After an emergency
FDA order, in the
United States it was placed under schedule I of the
Controlled Substances Act on 4 April
2003.
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