Nitric oxide then activates the enzyme guanylate cyclase, which results in increased levels of cyclic guanosine monophosphate (cGMP), producing smooth muscle relaxation in the corpus cavernosum and allowing inflow of blood .Kol ve maliyetler ile ba? ba?a fiyatlar artabilir ve bu durumda ürün hediye? her devir burada alfabelandan farkl? olabilir.