Alexithymia is related to somatization disorder and avoidant personality disorder. An important gene associated with Alexithymia is OXT (Oxytocin/Neurophysin I Prepropeptide), and among its related pathways/superpathways are Signal Transduction and GPCR downstream signalling. The drugs Cannabidiol and Ethanol have been mentioned in the context of this disorder. Affiliated tissues include brain and prefrontal cortex, and related phenotypes are homeostasis/metabolism and endocrine/exocrine gland