There are phosphodiesterase inhibitors such as Vidalista 40. It improves blood flow to the penis by relaxing the muscles that surround the penile blood artery. Tadalafil, a phosphodiesterase-active ingredient in Vidalista 40, helps men with erectile dysfunction by relaxing the penile muscles and increasing blood flow to the penis. Tadalafil facilitates simpler blood flow by relaxing the blood...