The document discusses the classification, treatment, and glucose lowering therapies for different types of diabetes. It provides details about the mechanisms of action, examples, A1C reduction, advantages, disadvantages, contraindications, and dosages of various antidiabetic drugs. Insulin is indicated for gestational diabetes, type 1 diabetes, and chronic kidney disease. Metformin, amylin agonists, and GLP1 agonists cause weight loss while sulfonylureas, pioglitazone, and insulin cause weight gain. Pioglitazone reduces fatty liver but increases risk of fractures and heart failure.