Tolazoline is used as -
Ans. is 'b' i.e., As vasodilator in treating coronary aery stenosis during angio procedures o Tolazoline is a competitive a receptor antagonist and has similar affinities for al and a2 receptors. It is a vasodilator and is quite similar to phentolamine but less potent. Vasodilatory action is due to increase in histamine secretion.
As thrombin inhibitor in peripheral angiography
As vasodilator in treating coronary aery stenosis during angio procedures
As vasoconstrictor in t/t of varices
Antispasmodic during biliary spasm