A 56-year-old man complains of thirst and frequent urination. The endocrinologist diagnosed this patient with diabetes mellitus and prescribed him glibenclamide. What mechanism of action does this drug have?

Answer options

1. Suppression of α-cells of islets of Langerhans
2. Facilitates glucose transport through cell membranes
3. Facilitates glucose uptake by the tissues
4. Inhibits glucose absorption in the intestine
5. Stimulation of β-cells of islets of Langerhans