Glycogen Storage Disease V, also known as glycogen storage disease type v, is related to myoglobinuria, recurrent and myoglobinuria. An important gene associated with Glycogen Storage Disease V is PYGM (Glycogen Phosphorylase, Muscle Associated), and among its related pathways/superpathways are Metabolism and Glycosaminoglycan metabolism. The drugs Valproic acid and Neurotransmitter Agents have been mentioned in the context of this disorder. Affiliated tissues include kidney and skeletal muscle, and related phenotypes are increased muscle glycogen content and elevated circulating creatine kinase concentration