In various diseases, such as cerebral vascular insufficiency, arteriosclerosis obliterans, Buerger disease, and Raynaud illness, this isoxsuprine Hydrochloride Sustained Release Tablet aid in enhancing blood flow. Your doctor will decide if you can take it for any further problems. Vasodilator isoxsuprine is used in medicine. The Isoxsuprine Hydrochloride Sustained Release Tablets act by expanding and relaxing the blood vessels in muscle cells, which improves blood flow in these muscles and tissues.