Cialis is an agent that helps in erectile dysfunction and is taken orally. It was approved by the Food and Drug Administration and combats erectile dysfunction. In Cialis put years of research and development. Only after extensive tests and trials, the preparation was allowed to be admitted in 2003. The result is, it helps the male patients to achieve harder erections and thus achieved that the men have a longer erection phase and thus conjures a smile on the faces of the patient and his partner. Thus, all of the research effort has paid off and the male consumers are through taking very happy and satisfied.