In this video, Dr. Suman Kirti, Endocrinologist, Holy Family Hospital, New Delhi, will talk about patients in whom ACE inhibitors are not given. Diabetic patients in whom serum potassium is high may not be prescribed ACE inhibitors as they might increase the potassium levels. ACE inhibitors are not given in renal failure patients, in whom eGFR is low. Also it is avoided in patients whose creatinine is more than 1.3 mg/dL. All diabetic patients are not given ACE inhibitors if these conditions are present.