Octreo 100mcg Injection is used in the treatment of acromegaly, carcinoid tumors, and bleeding esophageal varices. It is also used to prevent complications following surgery of the pancreas. Octreo 100mcg Injection is generally given by a healthcare professional. You should not self-administer this medicine at home. Your doctor will decide the dose and how often you should take them. You should use it regularly to get the most benefit from the medicine. Do not stop using the medicine even if you feel better unless the doctor tells you so. Using this medicine may cause few common side effects such as diarrhea, abdominal pain, nausea, constipation, flatulence, and headache. Let your doctor know if any of these side effects do not go away or get worse. Before using this medicine, inform your doctor if you have problems with your liver. You should also tell your doctor all the other medicines you are taking.