Migraine Without Aura, also known as common migraine, is related to migraine, familial hemiplegic, 3 and headache. An important gene associated with Migraine Without Aura is MGR4 (Migraine, Susceptibility To, 4), and among its related pathways/superpathways are Dopamine-DARPP32 Feedback onto cAMP Pathway and Monoamine GPCRs. The drugs Milnacipran and Norepinephrine have been mentioned in the context of this disorder. Affiliated tissues include pituitary and brain, and related phenotypes are nervous system and growth/size/body region