Clostridium Difficile Colitis, also known as pseudomembranous colitis, is related to chemical colitis and reactive arthritis, and has symptoms including abdominal pain, constipation and diarrhea. An important gene associated with Clostridium Difficile Colitis is IL1B (Interleukin 1 Beta), and among its related pathways/superpathways are Innate Immune System and Akt Signaling. The drugs Rifaximin and Loperamide have been mentioned in the context of this disorder. Affiliated tissues include skin and colon, and related phenotypes are homeostasis/metabolism and growth/size/body region