I was put onto Metformin and a statin.
I stopped taking them after about 5 weeks, but it so messed up my memory I am not exactly certain when.
As far as I can tell there is no great benefits to be gained - all I got out of it was a professional carpet cleaner which has not been out of the box for months. My memory is still poor - I forgot to go to see my daughter on a prearranged visit, but I think some things are getting better after much re-education.
However - by sticking to eating low carb my blood glucose numbers are good and continue to improve, and my other tests seem to show no problems or improvements as well.