Epilepsy, Focal, with Speech Disorder and with or Without Impaired Intellectual Development, also known as continuous spike and waves during slow-wave sleep syndrome, is related to centralopathic epilepsy and benign epilepsy with centrotemporal spikes, and has symptoms including back pain, cachexia and cyanosis. An important gene associated with Epilepsy, Focal, with Speech Disorder and with or Without Impaired Intellectual Development is GRIN2A (Glutamate Ionotropic Receptor NMDA Type Subunit 2A). The drugs Levetiracetam and Memantine have been mentioned in the context of this disorder. Affiliated tissues include temporal lobe and brain, and related phenotypes are intellectual disability, severe and specific learning disability