Viagra is a PDE5 inhibitor. PDE5 can prevent your penile arteries from dilating. Because Viagra stops the production of PDE5, your arteries dilate and blood flows into your penis to cause the erection. The major advantage of this approach is that, without PDE5 in your blood stream, you respond naturally to sexual stimulation with an erection. Unlike the injection of an artificial chemical into the penis, Viagra does not itself cause the erection. All Viagra does is to remove an obstacle to the natural cause and effect. Once sexual intercourse has finished, your penis returns to its usual flaccid state until you are ready to go again.

Similarly, we need to move the focus away from both price and the physical effectiveness of Viagra to report that it saves relationships as well. If you have been experiencing sexual problems but have not discussed them with your partner, this may be destroying the trust between you. Why should your partner believe that you still love her if you will not share your difficulties. Remember Viagra is cheap. It can restore your sexual function which is the first step to saving your relationship. Rebuilding the trust with your partner remains to be done. This means Viagra gives you to chance to double its value.

When Pfizer, the pharmaceutical company, began testing a new medication for the treatment of high blood pressure, it was not expecting to produce what has proved to be one of the most profitable medications ever marketed. This has been a most fortunate accident. It is also a tribute to the scientific precision with which the original clinical trials were conducted. The researchers identified an unexpected side effect — some men reported erections. The decision to see whether this was a consistent effect has changed male culture. Instead of hiding away in shame when affected by erectile dysfunction, men now routinely take Viagra and their problems usually disappear.