The prescription drug Avandia (rosiglitazone), marketed as a treatment for Type II diabetes, causes an increase in liver problems, heart problems and bone density problems resulting in fractures. It has been linked to cases of death due to liver failure and heart failure. Patients who have a history of certain medical conditions, such as heart disease, heart attack, high blood pressure, smoking and stroke, and those taking medications including diuretics, steroids, seizure medication and thyroid medication are more prone to experiencing serious side effects while taking Avandia.