seizures
"This has been my life saver.  I've been on this for 7 years or more.  I take 4500mg a day along with 600mg Lamictal a day. With each increase I have better control but this knocked me out when increased in larger increments. People say I look tired but I'm so used to it I don't notice.  Unfortunately I can't think straight.  My reading, comprehension, learning is shot.  I've been trying college for years, each increase brings better control. I wish I could stop the medication for a few days to see if there is another world out there but my brain gives me an unfortunate reminder if I'm late."