Making the switch from a brand-name epilepsy drug to a generic one may increase the risk of seizures or other side effects, according to a new study. Researchers found that more than two-thirds of neurologists reported that their epilepsy patients experienced breakthrough seizures after switching from a brand-name epilepsy drug to a generic one in the past year. Breakthrough seizures are seizures that occur while a patient is on medication. More than half also reported that their epilepsy patients experienced increased side effects attributable to the switch. Researchers presented their findings today at the annual meeting of the American Epilepsy Society.