Erectile dysfunction is one of the most popular dysfunction that frustrates most men young or old. It can be a temporary problem or ongoing one. It can be frustrating and also depressing for men along with his partner. Viagra pioneered the effective strategy for erection dysfunction. But it seems that it is often utilized in Cialis. Cialis manufactured by Eli Lilly is FDA approved prescription answer to impotence. The difference between Cialis as well as other FDA approved anti impotence treatment drugs Viagra and Levitra is always that this place works well with longer period of time approximately 36 hours. It also takes only a half-hour to demonstrate its effects, after intake. Cialis is prescription drug for the treatment of erectile dysfunction. It is PDE - 5 inhibitor, zinc heightens the blood flow into penis by inhibiting PDE - 5 enzymes. It is necessary to have sexual stimulation, physically or mentally. 2. Try Tribulus Terrestris How an erection takes place.