I have been on prozac for about two years as well as xanax. I have been on 2400mg of trileptal a day for about 8 months. My doc just put me on 200mg of lamictal about 2 months ago. I have tried about every combination of drugs in the past ten years. I feel a difference in my moods. But i have noticed if i take the trileptal and lamictal at the same time. I feel extremely groogy and out of it. I also experience sevee vertigo. I have started spreading them out from my doctors advice, hopefully things could get better.