Some important aspects of Viagra


Viagra is not recommended to the patients allergic to sildenafil drugs.

You also should not use Viagra if you are taking any nitrate drugs (in case of heart diseases or chest pains for example). Among these nitrate drugs are nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate. Nitrate components may be also be included in several recreational drugs (called “poppers”). Taking Viagra with a nitrate drug can result in a sudden and severe blood pressure decrease. If you notice such result you should immediately look for the emergency medical attention. The same is in case of a painful erection or if the erection is present more than within 4 hours. This long erection called priapism is able to harm your penis. The third case when you should immediately ask for the medical attention is if you notice a sudden vision loss.

Men about Viagra

Men about ViagraFor two weeks I am taking Viagra and now I see how changed my life. When I was thirty I noticed problems with potency, my erection wasn’t hard and I didn’t have sex with my wife.

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Before taking Viagra

Before taking Viagra  Before take Viagra you should go to your doctor and get consultation about all drugs which may interact to this drug.

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Why does Viagra cause vision changes? Viagra ocular effects

Why does Viagra cause vision changes? Viagra ocular effectsSildenafil blocks selectively phosphodiesterase-5 (PDE5) enzyme. Still it may affect the other enzyme PDE6, an enzyme found in the retina photoreceptors.

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Viagra possible adverse reactions

Viagra was clinically tested and demonstrated high rates of success in the treatment of erectile dysfunction in men.

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Viagra effect. Why Viagra doesn’t work?

Viagra effect. Why Viagra doesn't work?The usual Viagra dose is 50 mg prescribed for a healthy man who has no other conditions contradicting with Viagra intake.

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Viagra pharmacodynamic parameters

Viagra effect on erectile response

Viagra clinical trials proved that Viagra is helpful for patients with either organic or psychogenic impotence.

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Sildenafil pharmacokinetics and metabolism

Sildenafil absorption process is quick reaching an absolute bioavailability of 41%. Its pharmacokinetic characteristics are dose-dependable over the advised doses.

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Prior to the treatment with Viagra

Prior to the treatment with this medication it is absolutely necessary to consult your doctor, especially if you have other serious conditions such as cardiovascular disease, heart disease, heart rhythm problems or if you have experienced a stroke, a heart attack or congestive heart failure.

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Why Viagra?

The Viagra medication was developed by Pfizer International Inc, the pharmaceutical giant known for its revolutionary medical discoveries and breakthrough technologies.

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