Instructions for use of octreotide: It can be injected subcutaneously, starting with 50-100μg every 8 hours, the maximum dose is 1.5mg per day. for gastroenteropancreatic endocrine tumors subcutaneous injection starts with 50μg every 1-2 times a day and can be gradually increased to 200μg every time, 3 times a day. If used for esophagogastric fundic variceal bleeding, dilute with saline and then continue IV at 25μg/hour for up to 5 days of treatment. For prevention of postoperative and complications of pancreatic surgery, subcutaneous injection of 0.1mg/dose 3 times a day for 7 days.