The Invention of Viagra: common information.

The Invention of Viagra

The discovery of Viagra became one of the three greatest occasional findings in medicine; the same was with R-control and penicillin. The inventions were awarded with Nobel Prize. In 1998 scientists, who worked on the development of Viagra were also awarded with the prestigious award.

The history of Viagra started in 1992 in a small town Sandwich in Great Britain, during pharmaceutical researches at Pfizer company laboratories. The researchers undertook clinical testing of a new medical preparation – Sildenafil, which was developed for heart diseases treatment. Scientists expected that Sildenafil citrate will aid to increase of blood flow to a heart muscle and will decrease arterial pressure.

There were made an ample quantity of tests for finding out the effect of Viagra samples on heart diseases; however all of them showed that the medicine was not much effective for heart illnesses treatment though had a tremendous impact on erectile dysfunction.

The researchers of Pfizer, Inc. referred to an unexpected quality of Sildenafil with due attention and managed to turn their exploratory work into a powerful medical drug for impotency treatment. New medicine was named Viagra – it was a combination of two words "Vigor" (power, strength, energy) and "Niagara" - the most high-powered waterfall under the sun.

What does Viagra do? The mechanism of operation is very simple. The preparation increases amount of blood, which gets to man’s genital organs. It helps men to evoke natural erection. Viagra acts only when a man experiences natural sexual excitement and when a sexual intercourse is over, penis comes into its usual relaxed condition. In other words, Viagra effects only on natural mechanisms of erection occurrence and this is its distinctive excellence and a secret of international popularity.

An ample quantity of laboratory investigations were done before Viagra commercial manufacturing started. The tests started in 1993 and lasted for almost five years. The results proved high quality, safety and effectiveness of a new preparation for erectile dysfunction treatment.

Eventually in 1998 the medicine was approved by regulatory bodies and it became a new era at struggle with impotency. It was a beginning of a successful implementation of the preparation in the whole world. For many years there was no Viagra alternative and everyone, suffering from impotentness, took only Viagra.

The demand for this ‘blue pill’ was amazing. During only the first week of official sale there were made nearly 250 000 prescriptions. The second week set up a new record – approximately 300 000 men were able to test Viagra. Totally in 1998 Pfizer, Inc received nearly 1 billion dollars income. It was resounding success.

The effect of Viagra was tested by nearly 3000 thousands of men at the ages from 19 to 83 years all over the earth. An average continuance of erectile dysfunction equaled to five years. The factors that caused impotency were of psychological, physical and organic origin.

Nowadays millions of men all over the world are grateful to scientists from Great Britain for the invention of essential medicine, which helped them start a new life.