<prompt> Which among the following is a venodilator?HydralazineMinoxidilLisinoprilNitroprusside  <response>: Ans: d Nitroprusside Ref: KDT, 6 ed, p. 504Sodium nitroprusside is a combined arteriolar and venodilator. whereas all other given drugs are mainly arteriolar dilatorsrvasodilators ArterialVenousMixedHydralazineGTNACE inhibitorMinoxidilisosorbide dinitriteATi antagonistDiazoxide PrazosinCalcium channel blockers Amrinone, milrinone Sodium N itroprussideDiazoxideRelaxes resistance vessels, without any effect on capacitance vessels.K channel openerHydralazineA directly acting arteriolar dilator with little action on venous capacitance vessels.MinoxidilPattern of action resembles hydralazine.AE: excess hair growth on face, back and arms.ACE inhibitorsArterioles dilate and the compliance of large arteries is increased. 