Acarbose tablets are able to lower postprandial blood glucose and play a role in the treatment of type 2 diabetes; side effects include flatulence, diarrhea, and abdominal pain. Acarbose is a hypoglycemic drug that reduces the intestinal absorption of glucose, which in turn reduces postprandial blood glucose, and is used clinically in conjunction with dietary therapy for the treatment of type 2 diabetes mellitus. Adverse reactions to acarbose include flatulence, abdominal pain, diarrhea, erythema, rash, urticaria, skin rash, and edema. The drug is contraindicated in people who are allergic to the drug, chronic gastrointestinal disorders with significant dyspepsia and absorption disorders, severe renal and hepatic insufficiency, and children. Patients who need to use acarbose tablets for treatment should use the drug under the guidance of a doctor.