Hello my name is Marianne. I have had Type 2 Diabetes for a few years. I was doing really well with good blood sugars on 4 Metformin a day. After some blood tests it looks like my kidney function GFR? is at 50. Now the doctor has told me to only take 2 metformin a day. This has caused my blood sugars to rise. It is now suggested that I add one Januvia to the 2 metformin. I have read of scary side effects of Januvia and am so reluctant to take it. Where can I find peoples' experiences with Januvia? Thanks for any help you can give me.