Alpha-glucosidase inhibitors are used to treat Type 2 diabetes. These medications work by slowing down the breakdown of carbohydrates in your intestines, which lowers the amount of glucose (sugar) you absorb into your bloodstream. This helps to prevent spikes in blood glucose levels after you eat. Alpha-glucosidase inhibitors are available as oral tablets. Examples include acarbose and miglitol. You can discuss which option might be right for you with your healthcare team.