Prostil is a common clinical cardiovascular drug, the main component is prostaglandin E1, with the effect of improving microcirculation, used as follows: 1, for peripheral arterial occlusive disease, to relieve patients of intermittent limb pain; 2, to improve cardiovascular and cerebrovascular disease and peripheral small vessel circulation disorders, widely used in cardiovascular and cerebrovascular disease; 3, anti-thrombotic treatment; 4, part of the treatment of congenital heart disease; 5, adjuvant treatment of chronic hepatitis; 6, for intractable angina pectoris, the efficacy is better.