It activates the enzyme guanylate cyclase, resulting in an increased level of cyclic guanosine monophosphate (cGMP) in the corpus cavernosum.
See aktiveerib ensüümi guanülaattsüklaasi, mille tulemuseks on tsüklilise guanosiinmonofosfaadi (cGMP) taseme tõus kavernooskehas.