Fasting blood glucose is still high after taking dagliflozin tablets may be insufficient dosage of medication, may be too much dosage of medication, it is recommended to add the measurement of nighttime blood glucose. 1. Too much medication dose: see the Sumuje effect, diabetic patients due to too much medication dose, nighttime hypoglycemia occurs, causing a reflex increase in fasting blood glucose. It is recommended to reduce the dosage of the drug according to the nighttime blood glucose value and fasting blood glucose value under the guidance of the doctor. 2. Insufficient dosage of medication: seen in dawn phenomenon, diabetic patients due to insufficient dosage of medication, various insulin antagonist hormone secretion, nighttime blood glucose is normal, the blood glucose gradually rises after dawn, fasting blood glucose also rises. It is recommended to increase the dosage of the drug according to the nighttime blood glucose and fasting blood glucose under the guidance of the doctor as appropriate. Adverse reactions such as hypotension and hypoglycemia may occur after taking Dagliflozin. It is contraindicated in patients who are allergic to the product, patients with severe renal impairment, and those on renal dialysis. Diabetic patients are advised to monitor their blood glucose daily.