Based on the search volume and competition index for lacosamide, it seems that there is a moderate interest in this antiepileptic drug. However, the rising interest in related terms and categories indicates a growing interest in understanding and treating epilepsy. The side effects of lacosamide may be concerning to some, and the fact that it is a controlled substance may further deter its use. It's difficult to determine the projected future of lacosamide based on the given information, but the consistent search volume suggests that it will continue to be a relevant topic in the medical field. The associated rising trends may also indicate a shift towards alternative treatments or medications for epilepsy.