The full name of Metformin Extended-Release Tablets is Metformin Hydrochloride Extended-Release Tablets, which can reduce the absorption of glucose in the digestive tract and increase the body’s uptake and utilization of glucose, thus lowering blood glucose, and can be used to treat type 2 diabetes. Side effects such as weakness, nausea, rash, vomiting, dizziness, diarrhea, palpitations, abdominal pain, low blood pressure, dyspepsia, abnormal taste, and lactic acidosis may occur with the use of the drug. The drug should be swallowed whole with or after meals, not chewed, should not be consumed during the medication, and regular testing of blood glucose, urine glucose, glycosylated hemoglobin, and urine ketone bodies. The drug should be discontinued when the patient needs to be sedated with iodinated contrast medium, as it may cause rapid deterioration of renal function. There are interactions with furosemide, digoxin, insulin and other drugs in combination, so the use should consult a doctor. It is contraindicated in the following conditions: hepatic and renal insufficiency; type 2 diabetes mellitus with ketoacidosis; previous lactic acidosis; acute infarction; heart failure; major surgery; serious infections and traumas; clinical hypotension and hypoxia; allergy to the drug; pregnant women; and elderly patients over the age of 80. The drug is excreted in breast milk and should be discontinued in lactating women if its use is required. If you need to use the drug patients, please under the guidance of the doctor strictly follow the instructions of the doctor to take medication, do not self-medication.