Acarbose chewable tablets up to a few tablets a day is not fixed, different conditions, different people decide to take different dosages, the specific number of tablets a day to consult a doctor, follow the doctor’s instructions for medication. Acarbose belongs to the α-glucosidase inhibitor, can slow down the rate of carbohydrate absorption, generally used to reduce postprandial hyperglycemia. Indications are with dietary control, for the treatment of type 2 diabetes mellitus and to reduce postprandial blood glucose in people with impaired glucose tolerance. The dosage is to be swallowed whole immediately before a meal or chewed with the first few bites of food, and the dosage varies from person to person. Common adverse reactions to acarbose include flatulence and bowel sounds, occasional diarrhea, and rarely, abdominal pain. Gastrointestinal side effects may worsen if diet is not controlled. If symptoms of severe discomfort persist despite dietary control, consult a physician to adjust use. Skin allergic reactions such as erythema, rash and urticaria may occur in isolated cases. It is not recommended for people who are allergic to acarbose and/or inactive ingredients, people under 18 years of age, patients with chronic gastrointestinal disorders with significant digestive and absorption disorders, patients with disorders that may worsen intestinal flatulence such as intestinal obstruction and intestinal ulcers, severe renal impairment, pregnant women, and breastfeeding women. This drug needs to be used under the guidance of a doctor to avoid the adverse consequences of self-application.