From the Dingxian pill, Gastrodia elata, which was an herbal medicine, has been shown to have remarkable anticonvulsant effects on various rodent models of epilepsy in vivo [18], and its active ingredient Gastrodin (GAS) could decrease seizure severity and recovery time through inhibiting Nav1.6 sodium currents in a gerbil epilepsy model [19]. The gene discussed is SCN8A; the disease is epilepsy.