Glucagen, generically known as glucagon, is a medication used to treat cases of severe hypoglycemia (low blood sugar) in individuals with diabetes. It is a hormone that works by stimulating the liver to release stored glucose into the bloodstream, thereby raising blood sugar levels. Glucagen is typically administered via injection, and it is an essential emergency treatment for diabetic patients who may become unconscious or unable to ingest oral glucose due to a severe hypoglycemic episode. It is available in both pre-filled syringes and powder forms that must be mixed with a provided liquid before injection. Given its critical role in managing life-threatening hypoglycemia, Glucagen is a vital component of diabetes management and emergency kits for individuals at risk of severe low blood sugar episodes.