<prompt> Translate the following text to EnglishFenfluramine huongeza viwango vya serotonini katika ubongo Prozac pia hufanya hivyo, lakini si kwa kasi sana ili kutokeza hisia ya kuridhika.  <response>: Fenfluramine increases the brains serotonin levels Prozac does, too, but not as dramatically to produce a sense of satiety. 