Viagra – all you Need to Know, and even a bit more!

Creating a drug to improve male potency Viagra is the third great achievement of scientists of the twentieth century after penicillin and x-rays. Viagra is the world’s first oral pharmaceutical agent that found to be effective for the majority of males suffering from erectile disorder. The researchers, who were able to bring joy to thousands of men, in 1998, were awarded the Nobel Prize.

History of the Viagra

What is Viagra?

In the 90s of the last century, scientists working at the American company “Pfizer”, were engaged in invention of new drug that was supposed to relieve chest pain in angina pectoris. However, during clinical trials, it was found that active substance – sildenafil does not have proper effect on heart. At the same time all men who took part in trials, with enthusiastically talked about severe side effects associated with improved potency. When most of participants in experiment has flatly refused to return useless pills for heart, and one even tried to get into lab to replenish its reserves, company’s managers realized that they found a “gold mine”.

The new miracle cure has been given a name consisting of compound of words “Vigor” (which means “power”, “strength”) and Niagara (Niagara Falls), which is recognized as the most powerful waterfall in North America.

Viagra – Medical Research

Since 1993 it was held long and complex investigation, the purpose of which was to confirm unusual properties of Viagra. As a result, not only scientists were proved the high efficiency, but also tablets safety to combat male erectile dysfunction. As a result, the US Food and Drug Administration has authorized Viagra release.

How does Viagra Perform?

The main mechanism of this drug action is significant increase in blood flow to penis, which contributes to appearance of natural erection (5 Natural Treatments for Erectile Dysfunction). Viagra has a positive effect only on natural mechanisms of erection – this is its novelty and secret of incredible popularity.

Viagra is not sexual stimulant means that increase male libido, and does not cause appearance of sexual desire because action of “magic” pills is based only on local increase in blood flow to corpus cavernosum of penis, which contributes to erection appearance.

Viagra Application and Dosage

Usually it is recommended to take one Viagra pill an hour before planned sexual intercourse. The drug produces effect about 30-50 minutes after administration and maintains its effect for several hours. If you take Viagra before meal, it will work faster. Tablets should be used only when there is intention and ability to perform sexual intercourse, and no more frequent than once a day.The drug Viagra is available in three dosages: 25 mg, 50 mg and 100 mg. Originally assigned average dose is 50 mg, and then, depending on effect, it can be corrected: decrease or increase. There is another approach that you should start with the lowest dose and for the order, if necessary, increase dosage. If you have desire to buy Viagra you may do right now via My Canadian Pharmacy.

Possible Side Effects

Like any other drug “Viagra” has its side effects, the main ones are:

• upset stomach;
• headache;
• nasal congestion;
• redness of skin due to hot flushes;
• temporary reduction in vision;
• shortness of breath;
• general malaise.

To avoid such troubles doctors recommend to choose correct dose, and in any case not to abuse the drug and not to use it more than once a day.

Contraindications to Viagra Use

The use of Viagra is contraindicated in presence of the following diseases:

• leukosisdiseases of cardiovascular system;
• sickle-cell anemia;
• diabetes;
• penile deformation;
• hypersensitivity to sildenafil.

Additionally, one can try to increase potency by means of Viagra of My Canadian Pharmacy, takes place when there is simultaneous “magic pills” reception with nitric oxide donators or any other forms of nitrates.

The above mentioned contraindications are subject to to the fact that these diseases are generally accompanied by taking certain drugs. And it may contain a big threat. For example, simultaneous reception of Viagra with nitrates can lead to death.

Also it is considered to be extremely dangerous to combine Viagra with drugs such as:

• beta blockers (used for high blood pressure, angina and other cardiac arrhythmia);
• calcium channel blocking agents (belong to the group of antianginal drugs, which simultaneity increase amount of oxygen delivered to myocardium, and reduce need for hospitalization in this very oxygen);
• hypoglycemic (antidiabetic) drugs (lower blood glucose).

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