be used to treat circulatory problems, such as peripheral vascular disease and Raynaud's syndrome.

1,be used to treat circulatory problems, such as peripheral vascular disease and Raynaud's syndrome.Such problems can cause numbness pain and discomfort in the hands and feet, due to bad circulation. it relieves these symptoms by increasing the blood flow to the affect areas by widening the blood vessels.

2, a white or almost white powder, odorless or almost odorless, partically insoluble in water, acetate, ethanol(96%) and ethor. sparingly soluble in chlorrform. it dissolves in dilute mineral acid.