Glucagon is a medicine that’s different from insulin. It’s used to treat severe low blood sugar (hypoglycemia). Glucagon works by telling your body to release sugar into the bloodstream to bring the blood sugar level back up.
Sometimes, if you miss a meal, exercise too much, or don’t eat enough food for the amount of insulin you’ve taken, it can lead to low blood sugar. If not treated quickly, mild or moderate low blood sugar can become severe. In these cases, if you are physically unable to eat or drink a quick source of sugar, you may lose consciousness. When this happens, you’ll need Glucagon.