stimulation of the brain 5-hydroxytryptamine ( 5-ht ) neurons with different serotonergic agents , such as l-tryptophan , 5-hydroxytryptophan , imipramine , fluoxetine , 5-methoxy-tryptamine , quipazine , and fenfluramine , showed the inhibiting role of the 5-ht system in fsif .
C0041249
l-tryptophan
C0000578
5-hydroxytryptophan