Acarbose is an oral antidiabetic agent that belongs to the class of alpha glucosidase inhibitors. It is used to lower postprandial blood glucose levels in patients with type 2 diabetes mellitus. The drug acts by binding to the brush border enzymes alpha glucosidase and alpha amylase in the intestinal mucosa. This binding blocks the hydrolysis of complex carbohydrates into absorbable monosaccharides. As a result glucose absorption from the gut is slowed and the postprandial glucose peak is reduced. The decreased glucose excursions lessen the metabolic stress on pancreatic beta cells and improve overall glycemic control. These pharmacological actions provide a therapeutic role centered on modulating carbohydrate digestion and absorption.

Acarbose is an oral antidiabetic medication used to improve blood glucose control in people with type 2 diabetes. It belongs to a class of compounds called alpha-glucosidase inhibitors that act by slowing the digestion of carbohydrates in the intestine. By delaying the breakdown of starches and sugars it reduces the rise in blood glucose that occurs after meals. The drug is absorbed minimally in the gut and exerts its effect locally on the intestinal brush border. This inhibition prevents the conversion of complex carbohydrates into simple sugars that can be taken up into the bloodstream. As a result glucose absorption is moderated and overall postprandial hyperglycemia is lowered. Because it does not increase insulin secretion it has a low risk of causing hypoglycemia when used alone. The medication is therefore employed as an adjunct to diet and exercise to help maintain stable glucose levels throughout the day.

Common side effects of Acarbose include gastrointestinal disturbances such as flatulence and abdominal discomfort. Some patients may experience diarrhea or loose stools. Dyspepsia and nausea are also reported. Headache and dizziness can occur in certain individuals. These effects are generally mild and transient. Most people adapt to the medication without serious complications.

Abdominal discomfort may occur after taking Acarbose. Occasional diarrhea can result from changes in intestinal absorption. Flatulence is reported as a common gastrointestinal effect. Nausea has been noted infrequently in clinical reports. Headache and dizziness are less frequent side effects observed in some patients. These reactions are generally mild and often resolve with continued therapy.