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“At typical doses for each of these compounds, neurochemical studies suggest a continuum of serotonergic enhancement from tryptophan through the SSRIs, fenfluramine and MDMA having the largest effect.”
“5-HT release after fluvoxamine and fenfluramine was significantly diminished in rats on a TRP low diet, and significantly enhanced after fenfluramine in rats on a TRP high diet.”
“Finally, in a second set of mice, the same tryptophan diet was found to potentiate the aggression-reducing effects of fluoxetine and fenfluramine without disrupting motor performance.”
Journal of studies on alcohol. Supplement • 1993 | View Paper
“However, the tryptophan supplementation significantly enhanced the reduction in ethanol intake induced by fenfluramine and fluoxetine.”
“It appears that both fenfluramine and fluoxetine decrease ethanol intake more so than that of water or sucrose and that this effect is exacerbated by tryptophan supplementation.”
“In vitro, addition of fenfluramine into a synaptosomal fraction reduced uptake of 5-hydroxytryptamine, dopamine, γ-aminobutyric acid, glutamic acid, tryptophan and tjrosine. [”