Before using glucagon, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as latex used in some products), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: tumor of the pancreas (insulinoma), adrenal gland problems (such as Addison's disease, pheochromocytoma), not eating/poor eating habits, frequent low blood sugar.

Low blood sugar (hypoglycemia) is more likely if you do not consume enough calories from food, or if you do unusually heavy exercise. Symptoms include sudden sweating, shaking, fast heartbeat, hunger, blurred vision, dizziness, or tingling hands/feet. It is a good habit to carry glucose tablets or gel to treat low blood sugar. If you don't have these reliable forms of glucose, rapidly raise your blood sugar by eating a quick source of sugar such as table sugar, honey, or candy, or drink fruit juice or non-diet soda. Tell your doctor right away about the reaction and the use of this product. To help prevent low blood sugar, eat meals on a regular schedule, and do not skip meals. Check with your doctor or pharmacist to find out what you should do if you miss a meal.

Tell your doctor if you are pregnant before using this medication.

It is unknown if this drug passes into breast milk, but it is unlikely to harm a nursing infant. Consult your doctor before breastfeeding.