Which drug is commonly used as an adjunct in the treatment of type II diabetes?

Glipizide is commonly used as an adjunct in the treatment of type II diabetes because it belongs to the class of medications known as sulfonylureas. This class of drugs functions by stimulating the pancreas to release more insulin in response to blood glucose levels. By increasing insulin secretion, Glipizide helps to lower blood sugar levels effectively, making it a vital component of diabetes management.

In contrast, the other options serve different therapeutic purposes. Losartan Potassium is primarily used to manage hypertension and protect kidney function in patients with diabetes, but it is not a first-line treatment for lowering blood glucose. Ropinirole Hydrochloride is indicated for the treatment of Parkinson's disease and restless legs syndrome, having no role in diabetes management. Mirtazapine is an antidepressant that is not utilized for blood sugar control. Therefore, Glipizide's role directly targets the primary issue in type II diabetes, making it the appropriate choice among the options listed.