| Nitty Gritty Viagra Information: How Viagra | | | | close adequately, a man may not be able to |
| Really Works | | | | become erect. This is the leading cause of |
| | | | erectile dysfunction and the main reason why |
| The latest Viagra information is unheard of | | | | men turn to products like Viagra for help. |
| in the history of the pharmaceutical | | | | |
| industry. Pfizer, the maker of the drug, says | | | | Viagra Information: How It Really Works |
| 9 Viagra pills are sold every second . That's | | | | |
| about 300 million Viagra tablets a year. | | | | From the large amount of Viagra information |
| | | | that's been published, we now know that the |
| And you can bet most of the men taking Viagra | | | | scientists who developed the drug faced a |
| have no idea how it works. All they care | | | | major challenge. They had to find a chemical |
| about is that it DOES work. And it has | | | | that affects blood circulation in the penis |
| improved millions of men's sex lives all over | | | | only and not other parts of the body. And how |
| the world since Viagra hit the market about | | | | they did that was ingeniously simple. |
| 10 years ago. | | | | |
| | | | To follow along, you need to know the names |
| But the story of how the little blue pill | | | | of two important natural body chemicals:cGMP |
| works is actually quite fascinating. To | | | | causes blood flow to the penis to increase. |
| understand it, you first need to know a bit | | | | |
| about erections themselves -- and then we'll | | | | PDE 5 is an enzyme that deactivates the cGMP. |
| get to the nitty gritty Viagra information. | | | | |
| | | | The body has 11 different kinds of PDE |
| How Your Erection Works | | | | enzymes but only PDE 5 is found in the penis. |
| | | | So scientists realized that if they could |
| The penis isn't an ordinary organ that uses | | | | block PDE 5 selectively, it would allow the |
| muscle power to get the job done. It has no | | | | crucial cGMP to do its work better and let |
| muscles, instead using pressurized blood to | | | | more blood into the penis. Which would allow |
| become erect. | | | | men with ED to have better erections. |
| | | | |
| The penis contains two main tubes that fill | | | | So Pfizer started looking for a chemical that |
| up with blood. Smaller arteries and blood | | | | would target specifically PDE 5. They |
| veins carry the blood in and out of those | | | | discovered that sildenafil citrate disables |
| tubes. The arteries bring the blood in; the | | | | the PDE 5 enzyme, allowing the cGMP to build |
| veins drain it out. | | | | up blood pressure in the penis for a few |
| | | | hours before wearing off. And that's how |
| When the penis is flaccid, the veins that | | | | Viagra was born. |
| drain blood out remain open so there is a | | | | |
| constant circulation of blood. | | | | So now you know exactly how Viagra alters the |
| | | | body's chemicals to give millions of men |
| But when a man becomes sexually excited, the | | | | better erections and more satisfying sex |
| brain sends a message to those veins telling | | | | lives. |
| them to tighten up and prevent blood from | | | | |
| leaving the organ. It also sends a signal | | | | Viagra Information Resources: |
| causing the arteries to dilate and let more | | | | |
| blood in. The blood pressure in the tubes | | | | For more Viagra information, please visit our |
| builds up causing the penis to get harder and | | | | Men's Health Information Center. |
| longer. | | | | |
| | | | To order Viagra, visit the Viagra Information |
| And that's how your erection works. But when | | | | and Ordering page . |
| it doesn't work, you get... | | | | |
| | | | For Viagra information from the manufacturer, |
| Erectile Dysfunction | | | | visit Pfizer's Viagra website. |
| | | | |
| If the arteries and veins don't open and | | | | Read the FDA's Viagra Information Sheet. |