Hello and thanks for letting me join your club. My seizure disorder began at age 52 with a glioblastoma brain tumor. The surgery, radiation and chemo that followed all contributed to the chemistry of my brain that now has a low tolerance for seizures. I've only had seven grand mals total, most recently in October, but I'm taking 400 mg. Phenytoin Ext. nightly and am growing more concerned about the side effects. Chemo caused some neuropathy in my feet and toes seven years ago, but lately it feels like it's intensifying and spreading. I'm more depressed and lethargic than ever and still have dreams of tapering and weaning from that drug.