Tolmesoxide (RX71107) is a peripheral vascular dilator with blood pressure lowering activity. Tolmesoxide has shown direct vasodilation in the human forearm arterial bed and dorsal hand vein. Tolmesoxide can dose-dependently increase blood flow in the forearm and produce dilation during contraction of the dorsal hand veins. Tolmesoxide can be used to study high blood pressure and angina[1].