Glucagon rescue is the emergency injection of glucagon in case of severe diabetic hypoglycemia. It is needed during seizures and/or unconsciousness by an insulin user who is unable at that point to help themselves. Glucagon will facilitate the release of stored glucose back into the bloodstream, raising the blood glucose level.

Rescue has been simplified by the development of the glucagon hypoglycemia rescue kit, consisting of biosynthetic human glucagon, in a freeze dried form within a vial a sturdy syringe, pre-filled with a sterile diluting solution a conspicuous red or orange colored plastic storage box, which includes instructions. Glucagon rescue kits are manufactured by Novo Nordisk and Eli Lilly and Company.