[Physiology of erection and treatment of erectile dysfunction]

Erectile dysfunction is a very prevalent disease, associated with chronic diseases mainly from the cardiovascular system. Better understanding of penile physiology has permitted the development of new drugs which offers each type of patient a specific and directed treatment. In the future, more basic and clinical research will surely result in better drugs. This article is intended to give insight to modern physiological concepts and apply them to a better understanding of therapeutic options available nowadays.