The generic name of Metformin is Metformin Hydrochloride Tablets, and patients with abnormal glucose tolerance can take Metformin Hydrochloride Tablets under the supervision of a doctor only if control through diet and exercise is ineffective. Abnormal glucose tolerance refers to blood glucose between 7.8~11.1 mmol/L after 2 hours of oral glucose intake, while fasting blood glucose is lower than 7.0 mmol/L. This condition has not yet reached the diagnostic standard of diabetes. Patients with abnormal glucose tolerance should prioritize exercise and dietary interventions. If the control is unsatisfactory, metformin hydrochloride tablets can be taken under medical supervision. Metformin hydrochloride tablets are mainly used for the treatment of type 2 diabetes mellitus, especially type 2 diabetes mellitus that is ineffective through dietary control and physical exercise alone. It should be noted that Metformin Hydrochloride Tablets may cause gastrointestinal discomfort, lactic acidosis and other adverse reactions, while allergy to metformin, renal insufficiency patients should be prohibited from using the drug. It is recommended that patients with abnormal glucose tolerance be treated under the guidance of a doctor, and the use of drugs must follow the doctor’s instructions to avoid adverse effects.