This is a suggestion of Dr. Rolla:

C Vitamin C, 500 mg,

A Aspirin, baby aspirin, good to prevent heart attacks.

F Folic Acid, 1mg, lowers homocystien levels which are predictors of heart attacks.

E Vitamin E, I think it was 800-1000 mg, an antioxidant

List members have also mentioned that people on Glucophage are often low or depleted in B12 so they take a B-complex vitamin.