What Is The Real Difference Between Viagra, Cialis, And Levitra

September 5, 2008 · Filed Under Men's Health · Comment 

Levitra, Cialis and Viagra are all PDE-5 inhibitors. The purpose of these are to assist in relaxing hard penile arteries which then let the blood flow into the penis, hence allowing an erection. All of these medications also assist in maintaining high levels of cGMP in the penis. Read more