HELPING THE OTHERS REALIZE THE ADVANTAGES OF VIAGRA

A further advantage of Viagra over an injection of phentolamine is the fact that Viagra only causes an erection if the man is sexually aroused. Phentolamine, In contrast, causes a direct and uncontrolled erection.Because the PDE5 has been disabled, the cGMP from the penis does not stop working. Instead, it builds up and lets the arteries during the