Postgastrectomy Syndrome, also known as postgastric surgery syndrome, is related to afferent loop syndrome and dumping syndrome, and has symptoms including constipation, pain, postoperative and vomiting following gastrointestinal surgery. An important gene associated with Postgastrectomy Syndrome is GCG (Glucagon), and among its related pathways/superpathways are Signal Transduction and GPCR downstream signalling. The drugs Benzocaine and Tannic acid have been mentioned in the context of this disorder. Affiliated tissues include lymph node and small intestine, and related phenotypes are homeostasis/metabolism and digestive/alimentary