Hi,
I was on Dilantin for a few years (have had epilepsy for 16 years, been on lots of meds), and I must say, it is unfortunately one
of the more difficult meds
in terms
of keep a constant blood level. What dose are you on currently? If you are on 400 or 500mg, you should will have a more "dependable" blood serum level--at least the medication level will stay within an acceptable range, but dilantin can have many unpleasant side effects, especially at 500mg.