The mechanism of action of Sodium nitroprusside is
Sodium nitroprusside acts by releasing nitric oxide(NO). This stimulate guanylate cyclase and results in the elevation of cGMP, which are vasodilators. Refer kDT 6/e p549
Increased cAMP
Stimulation of guanylate cyclase
Calcium channel blockers
Potassium channel blocker
Cardiovascular system