Arround 10 percent NIDDM patients will develope secondary failure every year. Acarbose could lower the absorbtion of glucose from the intestines. The aim of the study is to evaluate the benefit of acorbose as adjuvant treatment to NIDDM with secondary failure to glibenclamide. Patients were secondary failure to glibenclamide include to the study. The study was done in two phases. First phase: t…