When a diabetic person got admitted in the hospital, his blood sugar was 56 mg. Which among the following was the drug more likely to be prescribed by the doctor?

With blood sugar at 56 mg/dL (severe hypoglycemia), glucagon is the most appropriate emergency treatment. Glucagon rapidly raises blood sugar by stimulating glycogenolysis in the liver. Metformin and glipizide are oral hypoglycemics that lower blood sugar - they would worsen the condition. Neutral insulin would dangerously lower blood sugar further.