Final answer:
Glipizide (Glucotrol) is not an oral insulin. It is an oral medication belonging to the class of drugs called sulfonylureas, which help to lower blood glucose levels by increasing insulin secretion from the pancreas and improving the body's response to insulin.
Step-by-step explanation:
No, glipizide (Glucotrol) is not an oral insulin. It is an oral medication belonging to the class of drugs called sulfonylureas. Sulfonylureas stimulate the beta cells of the pancreas to secrete insulin, but they are not insulin itself. Glucotrol helps to lower blood glucose levels by increasing insulin secretion from the pancreas and improving the body's response to insulin.