NCIt definition : The hydrochloride salt of fenfluramine, an amphetamine derivative and a sympathomimetic
stimulant with appetite-suppressant properties. Fenfluramine, which was part of the
Fen-Phen anti-obesity medication, stimulates the release of serotonin from vesicular
storage, and modulates serotonin transporter function. Since serotonin regulates mood
and appetite, among other functions, increased serotonin level results in a feeling
of fullness and loss of appetite.;