Which medication is an alpha-glucosidase inhibitor?

Acarbose is indeed an alpha-glucosidase inhibitor. This class of medication works by delaying the absorption of carbohydrates in the intestines, which leads to a slower and more controlled release of glucose into the bloodstream after meals. This mechanism helps to lower postprandial (after meal) blood sugar levels, making it particularly beneficial for individuals with type 2 diabetes who experience spikes in blood sugar after eating.

Other medications listed do not belong to the alpha-glucosidase inhibitor class and have different mechanisms of action. For instance, glimepiride is a sulfonylurea, which stimulates insulin secretion from the pancreas. Pioglitazone is a thiazolidinedione that improves insulin sensitivity. Repaglinide is a meglitinide that also stimulates insulin release but has a rapid onset and shorter duration of action. Thus, the distinction of acarbose as an alpha-glucosidase inhibitor is relevant for understanding its unique role in managing glucose levels in diabetes treatment.