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