I am a post liver transplant patient and have been on prograf (tacrolimus) for eight years. I have recently been prescirbed Trokendi XR for spinal fusion pain by a pain management doctor. I am concerned about interaction with my anti rejection medication. Should I raise this concern and request another medication from the pain management doctor? I am also experiencing a major episode of red and itching skin, since starting the medicine last Wednesday. Thank you for any advice you can give.