Acarbose is a diabetes medication. It is used to treat high blood sugar levels in diabetics. Controlling high blood sugar levels can help avoid kidney disease, blindness, nerve disorders, limb loss, and sexual function issues. Diabetes management may also reduce your risk of a heart attack or stroke. Acarbose pills work by inhibiting the digestive enzymes that convert complex carbohydrates into simple sugars like glucose. This keeps blood glucose levels from skyrocketing just after meals. This medication comes in a form of a tablet. It should be taken 3 times daily with the first bite of a meal. The dosage is based on your medical condition and response to treatment.