... to a 10 mg dose fluoxetine. She has been off the Cymbalta 6 days. She was on fluoxetine 5 days before the doctor stopped it. It seemed to make her feel worse. The pharmacist said the Cymbalta should be out of her system and the fluoxetine is causing the withdrawal. Is this possible only being on it for less than a week? How long will she go through this? She was put on this for neuropathy caused by Lyme disease not for depression. Cymbalta is used for diabetic nerve pain and the doctor was hoping it might help with her neuropathy.