For a long time treatment for impotence was restricted to penis injections, mechanisms that create voids or prostheses implanted through surgery. Since late 1990s, however, there has been a simple and convenient treatment for erectile dysfunction, drugs that inhibit Phosphodiesterase type 5 (PDE-5), commercially known as Viagra, Cialis and Levitra.
Sexual impotence, also known as erectile dysfunction, is man's inability to initiate and / or maintain a penile erection sufficient for sex. In this paper we expand on the causes, symptoms and treatment of sexual impotence.