GCG and hereditary pheochromocytoma-paraganglioma: If a patient exhibited a diagnosis of “Pheochromocytoma” on their problem list, the electronic medical record might have created a warning if a provider had attempted to order beta blockers, dopaminergics, sympathomimetics, opioids, tricyclics, selective serotonin reuptake inhibitors, monoamine oxidase inhibitors, corticosteroids, glucagon, or neuromuscular blockade.1