Aye, I heard from my Dr. this morning and my Dilantin level is way off. One other time since taking this med have I had it go way out of whack. Horrible feeling really. Everyone’s range is different but in general the range is to be between 10-20(mcg/ml). After following my Dr.’s med adjustments for the last 2 and 1/2 weeks my level is 33.4. Yes, much higher than it should be, tad of toxicity. That is why I have felt like poop! Good news cause we can work that out. Next six days may be rough but at least on the road to a less emotional me. More positive and less about my palarva (problems)! Have a good one!!!