For diabetes mellitus, American Diabetes Association has put up some targets. The most important issue is to keep the levels under target with medications or without medications. Metformin is a very good medicine as it takes care of the underlying problem of insulin resistance and in the long term seems to be very useful. The targets are as follows-
1. FBG 80-120 mg/dl
2. PPBG <180 mg/dl
3. Hb1ac or Glycosylated Hb <7%, this test tells about the average control of blood glucose in last three months and should be done every three months.
4. BP <139/80
4. LDL- Cholesterol <100 mg/dl
You can decide about Metformin after getting HbA1c level if <7% then no need for metformin. Continue with aspirin as it protects the heart.