Hello Doctor, My father-in-law is 70 years old, he has diabetic past 17 years & rectenly we come to know he has a kidney problem (Creatinine). And he is taking medicines for that, but for sugar there is no medicine, he is taking insulin 4 times a day, total insulin dosage is 82. Is creatinine was 2.2 last december 2010. Recently (3 days back) we checked it was 3.1. Pls. advice.