Why would a nurse practioner prescribe topomax and Prozac for a young woman who has migraines, binge eating, and symptoms of depression. She has not been diagnosed with any of these things. This is the first time she has seen a doctor. She was supposed to see the psychiatrist but his office called before the appointment and said he was not seeing new patients but she could see a nurse practioner. It was the nurse practioner who saw her for an hour and then prescribed those two meds.