My father's Creatinine levels were initially 1.3, non- diabetic. The doctor had suggested having nefrosave tablet. In the recent blood test reports the creatinine levels have gone up to 1.44. The cholesterol levels are at 216 mg/dL. Fasting sugar is now 110 which is mentioned in the pre-diabetic stage Should he continue with the nefrosave tablet and how can the creatinine levels be reduced. Please suggest. He also has hypothyroidism for which he is taking medication.