Physicians who treat and study patients like Christian say Potiga is a quintessential example of how 21st-century medicine is supposed to work. As scientists learn more about the biological causes of disease, they will be able to design drugs or rediscover old ones that treat not just symptoms but also the root causes of illness. Potiga was developed and approved to control seizures in adults with epilepsy, but it came with a bonus - it worked in a new way, by targeting potassium channels in the brain.