diabetes, type 2
"I have diabetes type 2. My doctor prescribed 500mg two times a day. After the fourth day,
I noticed my heart was racing, sometimes at 90 beats a minute.  My heart had NEVER done that, as I am in excellent shape, a power walker/jogger. I knew that the metformin caused it because as I sat with wife over supper, I took the 500mg pill half way through the meal. Within a few minutes my heart was pounding almost out of control. My blood pressure monitor showed normal blood pressure, but a pulse of 101. I stopped the drug right away. The problem is that it takes 4 days for this damn drug's effects to leave the body. So now I am taking  a sedative which lowers the heart rate, while I wait for these 4 days to pass. I am a 67 year old male."