yeah ^ i agree with layla. you should go off them from 40, to 30, to 20 etc.
because i stopped taking my epilepsi tablets a few weeks ago, im 15 btw. and my behavior kinda changed, i was feelin tired alot, reallly moody, and it got me into really bad arguements with parents, i ended up running away, jumping out of the window whilst drunk, and staying at my friends house the whole weekennd without telling my dad where i was. i also tried taking an over-dose.[i was drunk whilst doin this]
it realllllllly did effect how i was, because it got me alot worse, if i was in arguements, i wouldnt back down where as i normally would. and id scream shout and everything, it really affected me. so i dont think you should just stop with any medications.ofcourse i realise this now.