Xena, those drugs deteriorate diabetes they dont cause it. Its like pregnant women that will have diabetes later in life first signs are in pregnancy. <br /> Diabetes type 2 is caused from pancreatic insufficiency to produce insulin, also when someone is obese there is resistance to the action of insulin. So new drugs now reduce body weight in order to minimize resistance to insulin.] <br /> Those drugs you have mentioned are valuable to help people with other serious diseases. <br /> Most drugs if not all have serious adverse effects the physician has to consider.