My family's treatment in these three years is insulin injection+metformin+diazepam. Insulin is used to control the blood sugar level of dogs, which can quickly reduce blood sugar; The main purpose of metformin is to rapidly reduce blood sugar; Wenjiangning can reduce blood sugar and control sugar, and also promote insulin secretion and improve immunity. Personally, I think this method is really effective. My dog's blood sugar has been hovering between 3 and 7.