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. Stimulates B-cells of Langerhans islets
2. Inhibits glucose absorption in the intestine
3. Facilitates glucose uptake by the tissues
4. Facilitates glucose transport through cell membranes
5. Inhibits a-cells of Langerhans islets