Since my daughter has been on this she has had terrible screaming/hitting/biting times. It has increased. Does anyone else have that problem? This seems to be the only drug (even though she is on trileptal (oxcarbazepine), onfi (clobazam), sabril (vigabatrin) along with the phenytoin. Any suggestions on a drug to go along with the dilantin that might help with these terrible moods?