Which of the following is a vinodilator?: (A) Hydralazine, (B) Minoxidil, (C) Nitroprusside, (D) Nifedipine
Answer is C. Ref:Katzung 10/e p173-174;KDT 6/e p540 Hydralazine, minoxidil and nifedipine are primarily aerioler dilators where as nitroprusside is a mixed aerioler and venous dilator, therefore best answer here seems to be nitroprusside