If you wish to order Viagra discreetly online, click here. If you have a prescription from another doctor, you cannot use this form. Full explanation to quiz. About 1 million American men suffer from impotence. About 10 million to 20 million Americans suffer from erectile dysfunction, or impotence, the inability to produce or sustain an erection 2.
Heart disease can cause impotence.
When a man becomes sexually aroused, his nervous system communicates the arousal to his penis. Blood vessels that supply the penis relax, allowing more blood to fill the two spongy cylinders that run parallel to the urethra within the penis. That produces an erection. Viagro is the first pill to be approved for the treatment of impotence by the U.S. Food and Drug Administration. The new impotence pill only works if a man is already aroused.