I am in a similar position with my tegretol. I decided to slowly ween myself off on my own schedule as my body feels best (pdoc is okay with this btw). I hate being on meds that I feel are doing absolutely nothing. Could you ask your pdoc for any further guidance or opinions?

Ultimately, it's your decision, and I don't think it's one that really matters much because if you decide to reduce or stop the med you can always restart it again.