... with symptoms I had she put me on it. My primary Dr said I shouldn't take it or should take it. I know after eating doesn't matter how big of small I eat I am fatigue exhausted after eating. I think I may have a glucose problem. BUT I was scarred to take met form in because my primary placed me on wellbrutin XL 300 mg a day to aide with stop smoking which by the way I am 30 days non smoking yay! I didn't lose NO weight on Wellbrutin which is one side affect and one side effect for merformin also (I can stand to lose weight since I gained some for stop smoking). But are both safe to take together?