Priapism, also known as mentulagra, is related to impotence and peyronie's disease, and has symptoms including painful erection An important gene associated with Priapism is PDE5A (Phosphodiesterase 5A), and among its related pathways/superpathways are Signal Transduction and Response to elevated platelet cytosolic Ca2+. The drugs Sodium citrate and Hydroxyurea have been mentioned in the context of this disorder. Affiliated tissues include spinal cord and myeloid, and related phenotypes are homeostasis/metabolism and renal/urinary system