vilitra contains 60mg of the active component Vardenafil which is a phosphodiesterase-5 inhibitor. Its effect is similar to that of Sildenafil Citrate, or Viagra, but Viagra lasts between 2 and 4 hours, while vilitra 60 Mg lasts 4 hours. cGMP is responsible for the relaxation of blood arteries, providing blood flow to the p*nis, leading to an erection.