| I took metformin for about 5 years, 1000mg 2x daily, but had to stop taking it a few months ago. I am now subject to having unscheduled angiograms. Metformin mixed with the contrast dye used during that procedure can play havoc with the kidneys. But I also had boughts of diarrhea once or twice a week that were awfully similar to what "the terminator" described.
. I now take 12 units of Lantos at bedtime and my morning numbers have dropped from 130-150 to 90-110. Found out that a little needle hurts less than a lancet and the pen type is real easy to use. Tom | 
