Major Affective Disorder 9, also known as major affective disorder-9, susceptibility to, is related to major affective disorder 1 and bipolar disorder. An important gene associated with Major Affective Disorder 9 is MAFD9 (Major Affective Disorder-9, Susceptibility To). The drugs Asenapine and Risperidone have been mentioned in the context of this disorder. Affiliated tissues include brain and prefrontal cortex.