... breakthrough seizures. at 200mg. i am still having seizures so my doctor is going to increase me to 300 mg. my question is can this medicine work alone(has anyone ever had it work alone) or will i have to have another medicine added to it. i used to take topamax but it stopped working for me, should i have it re added perhaps since i know the side affects already from it or is it time to try something new? i truly dread the side affects of some of the drugs out there(weight gain,swelling,etc). if i have to have one added, does anyone recommend anything in particular? thanks for any input!