I take two Janumet (metformin and sitagliptin) per day, made by Merk and still in-patent. They make an XR (extended release) version, where you only take one pe

I take two Janumet (metformin and sitagliptin) per day, made by Merk and still in-patent. They make an XR (extended release) version, where you only take one per day. I can see a deuterium version extending the patent rails for another N years.