Bystolic is a sugar-lowering drug, which mainly inhibits the absorption of sugar in the intestine, that is, it can lower the blood sugar after meals. The dosage of Byosaprine also varies from person to person, generally starting with one tablet each time, three times a day. If the effect is not good, it can be increased to two tablets each time, three times a day, and in individual cases, it can be taken to four tablets each time, three times a day, of course, the specific application should be under the guidance of the doctor. If the blood sugar is not well controlled, it is recommended to add other hypoglycemic drugs.