SOMATIN 3000/3MG INJECTION is used in the treatment of severe acute gastrointestinal hemorrhage (gastrointestinal bleeding) caused by gastric or duodenal ulcers, hemorrhagic gastritis (inflammation in the lining of your stomach) and esophageal varices (enlarged veins in the esophagus). It contains somatostatin, which works by inhibiting the growth hormone, thyroid stimulating hormone, insulin and glucagon secretion as well as inhibition of stomach acid secretion. This medicine may sometimes cause side effects such as diarrhea, abdominal pain, increased glucose level in blood, nausea, vomiting, flushing and injection site reaction. Inform the doctor if you are pregnant or breastfeeding, taking any other medication, or have any pre-existing medical conditions.