Hi Mr. NorthSouth,
I just read this thread also, and I hope everything went alright. I just wanted to add that the other thing you have to check with metformin is kidney function, because it can cause kidney failure in people who have poor kidney function, and persistantly elevated blood glucose levels can lead to kidney damage (so your wife may be at risk for it).
Her BUN/Creatinine levels should be tested, Creatinine being the important value.
I hope all is well
