Any Side Effects Of Taking Encorate Chrono 300 For A Long Duration?

sir, my daughter aged 17 yrs taking encorate chrono 300 twice a day after meals as advised as she was treated for one episode of partial seizure . now she is ok and no problem at all. eventhough doctor advised continue the medicine for life long. My question is is there any side effect cuasing liver damage for life long intake of medicine. she will develope any other problem in future