All the following drugs cause aeriolar dilatation except: (A) Hydralazine, (B) Diazoxide, (C) Nifedipine, (D) Glyceryl trinitrate
Answer is D. Nitrates are primary venodilators. Nefidipine is a calcium channel blocker and aeriolar dilator.Fenoldopam , minoxidil also cause vasodilationRef: KD Tripathi; 6th ed, pg 540