Even though we have many advances in the development of oral hypoglycemic agents, an ideal drug for treating type 2 diabetes is still a distant reality. Today, physicians can choose from a variety of medications targeting numerous facets of disease, but each drug class poses some limitations. The age-old molecules, such as sulfonylureas and biguanides, are still valued because of their well-studied mode of action, safety, tolerability, and predictable pharmacodynamic effects. This book attempts to describe the historical aspects and advances in the arena of oral hypoglycemic agents, extended- and sustained-release formulations of glipizide and metformin (both of which have great promise in the treatment of type 2 diabetes mellitus) as well as evaluates the role of the group in diabetic foot infections.