in rats , three alpha-alkylated tryptamine derivatives ( alpha-methyl , alpha-ethyl , and alphaalpha-dimethyltryptamine ) caused alterations of 5-hydroxytryptamine metabolism typical of monoamine-oxidase inhibitors with short duration of action , viz. , an increase of endogenous 5-hydroxytryptamine in brain , enhancement of the increase of 5-hydroxytryptamine in brain and heart after 5-hydroxytryptophan administration , an inhibition of the decrease in 5-hydroxytryptamine in brain induced by a benzoquinolizine derivative and of the increase induced by iproniazid .
C0041248
tryptamine
C0027183
dimethyltryptamine