Carbocromen (chromonar) is a

vasodilator Vasodilation is the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. The process is the opposite of vasoconstriction, ...

References

Vasodilators Coumarin drugs Carboxylate esters Diethylamino compounds Ethyl esters {{cardiovascular-drug-stub