Adding Glipizide

So even with my more healthy eating and all of the exercise the Metformin hasn't been cutting it lately. My last A1C was good, but I get some real high numbers after eating; especially after breakfast. So now my doctor has decreased my dosage on the Metformin and is supplementing it with Glipizide. So far so good; I've only been on it a week, but it seems to be helping a lot.