Treatment for Metastatic Gastrinoma Occasionally active drugs include doxorubicin , streptozocin , 5-FU , etoposide and Cytoxan . Chemotherapy is often reserved for patients who cannot tolerate surgery and cimetidine (Tagamet). • Interferon-alpha has recently shown some effectiveness in controlling tumors and reducing symptoms. • Combining chemotherapy drugs and blocking the blood supply to the liver (hepatic artery chemoembolization) may successfully treat liver metastases. Palliation Octreotide (Sandostatin) is a synthetic, long-acting somatostatin analogue that significantly decreases hormone secretion by tumor cells . It is extremely useful for suppressing gastrin levels and inhibiting the hypersecretion of gastric acid on a sustained basis for managing the Zollinger-Ellison syndrome. This may be helpful if Omeprazole treatment fails. Five-Year Survival 65 percent Insulinoma Insulinomas usually occur between ages 40 and 60. Ninety percent are benign and curable.