Hi emmi-
I can only speak for my experience on other antiseizure drugs. I was on Tegretol (same as Carbitrol) a short time, not long enough to affect my liver functions. I've been on a lot of the older drugs that affect the liver and just about all of them caused a slight elevation of my liver enzymes.
It took 2-3 weeks after I was weaned off a drug and my enzymes were back to normal again. I never suffered any severe liver problems, thank goodness. My meds now, Lamictal and Zonegran, haven't caused me any problems as far as my blood tests.
I assume you stopped Carbitrol due to your liver function tests being too high?
Glenda