The mechanism of action of sodium nitroprusside is:
Ans. (B) Stimulation of guanylate cyclase(Ref: KDT 8th/e p544)Sodium nitroprusside acts by releasing nitric oxide (NO). This stimulates guanylate cyclase and results in the elevation of cGMP, which is a potent vasodilator.
Increased cAMP
Stimulation of guanylate cyclase
Calcium channel blockage
K+ channel opener
C.V.S