Ricker hypoglycemic agents: biguanides are oral hypoglycemic agents. The hypoglycemic effect of rickets is mainly to help diabetic patients make full use of endogenous insulin, increase the utilization of glucose by surrounding tissues, delay or reduce the absorption of glucose by gastrointestinal tract, reduce the glucose output of hepatocytes, inhibit glycogen dysplasia, improve the hyperlipidemia state caused by lipid metabolism disorder in diabetic patients, and have certain curative effect on preventing arteriosclerosis. The incidence of hypoglycemia in patients treated with Likelike is lower than that of sulfonylureas.