Vasodilators cause blood vessels to expand, thereby increasing blood flow.
This medicine is used to treat problems resulting from poor blood circulation. In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes. It is not known whether papaverine passes into the breast milk.