Has anyone used either Benadryl or Prozac to minimize withdrawal symptoms? My 17-year old has gone from 150mg to 40-ish mg of Venlafaxine but has hit a wall and we're having trouble going any lower without causing significant issues like headaches, extreme fatigue and insomnia. She feels well emotionally but the physical symptoms are taking a toll. I've heard that Prozac can help, but when I looked it up in the PDR it does not recommend that the two be taken together because of serotonin syndrome. Does anyone have advice about how to help us?