Viagra

How does Viagra work?

We are all well used to the effects of Viagra and the drug has long transformed from a real-life miracle into an ordinary medication. Millions of men use Viagra on a regular basis never wondering how it makes their erections better. They are just satisfied by the fact that it works and they don't have to anything special, just take the pill and enjoy the action. However, the mechanism of action implemented in Viagra is really impressive and knowing it might actually use the drug more effectively. Sure, you can carry on using the medication without knowing how it works, as it won't alter the effects delivered with the pill. But if you spend just a few minutes of your time you will realize the amazing things the drug does when entering your body. So how does Viagra work and what makes it such a great medication for treating erectile dysfunction?

If you ask your doctor about the mechanism of action, he will probably give you the simplified version in order to not bore you with additional details. According to the simplified version Viagra intensifies the blood flow into the penis when an erection is formed thus making it stronger and more durable. But that's not how it works actually. If it was a matter of making your blood run faster through the veins then the numerous drugs that are used to increase blood flow would work just like Viagra, which they don't. In order to understand the ingenuity of Viagra we'll have to take a closer look on the process of erection and understand how complex the thing really is.

Erection is formed when the brain gets sexually aroused and sends a neural signal through the spine to the penile area. There are complex chemical reaction is triggered involving several compounds (particularly the cGMP enzyme) that relax the smooth muscles at the base of the penile shaft, which allows the blood to fill the cavernous body of the penis and form an erection as we know it. However, due to various causes the amount of blood entering the penis can decrease. In most cases it's a matter of blood circulation or the production of enzymes that are responsible for relaxing the smooth muscle. So the most obvious solution would be intensifying the enzymes that stimulate blood inflow and blocking the enzymes that impede this process. And that's exactly how Viagra works. In medical literature Viagra is classified as a PDE-5 inhibitor, which means that it blocks the PDE-5 enzyme. This particular enzyme is responsible for binding the other compounds that trigger the blood inflow, particularly after ejaculation. Thanks to exactly this enzyme men don't keep a hard-on after experiencing an orgasm, which would definitely be very uncomfortable. However, when there's too much of PDE-5 or the cGMP isn't produced in sufficient numbers there's too little blood filling the penile shaft and the resulting erection is weak and temporary. We know this as erectile dysfunction. What Viagra does is that it intensifies the production of cGMP and blocks PDE-5 in order to intensify the smooth muscle relaxation and allow more blood to flow in. Moreover, since the PDE-5 is blocked it doesn't get in the way of the erection for a longer period of time until ejaculation occurs. That's exactly why erections get stronger and more durable after taking Viagra.

As you can see this complex process only affects the chemical balance in the penile area and has nothing to do with the body in general or the nervous system in particular. That's the reason why Viagra is a very safe medication that can be used by men with various health complications such as hypertension, diabetes, high cholesterol and others. And that's why Viagra only takes effect when the person is sexually aroused. After all, getting an automatic erection after taking the drug would be too embarrassing in various situations, despite the common belief shared by people who have never been in those situations. Viagra is a truly wonderful drug that works in just the right way to aid those in need of better erections but not provide discomfort if it's not needed at the moment. So think about this the next time you take the blue pill.

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