Thread:MetallicArcher/@comment-173.58.100.7-20150910225014/@comment-26397825-20150914054907

It is, as well as one of the ingredients in gun powder, but they also use it to treat heart problems such as angina pectoris and chronic heart failure. It's described as being used to widen the blood vessels, and can dilate veins and arteries, reducing the work your heart has to do to pump the blood around your body.

Or, that's what I read.