<prompt> Which of the following is VenodilatorHydralizineMinoxidilNitroprussideNifedipine  <response>: Hydralizine, minoxidil and nifedipine are primarily aeriolar dilator whereas nitroprusside is a mixed aerial and venous dilator. Therefore best answer seems to be is a nitroprusside Refer kDT 6e p540 