History of Sildenafil Citrate (Viagra) Pills

Many facts of history show that some of the scientific discoveries have turned the world were made by accident.

History of medicine remembers a lot of stories, when the appearance of a unique kind of drugs was carried out quite by accident, as a result of “mistakes” and mismatches. So happened with history of penicillin, when in 1928 Scot Alexander Fleming noticed that the green-blue mold (natural penicillin) in a cup of staphylococci.

Where and when did the history of Sildenafil Citrate begin?

Viagra (basically Sildeanfil Citrate) was also discovered by mistake. It is an effective remedy has to be used as a heart angina medication but it had a poor efficacy profile though with one very interesting “side effect” – capability to cause strong erections even for males with impotence or erectile dysfunction.

impotence-viagraThe story does not end with the creation of generic Viagra. Many people are interested why the original drug is called Viagra Pfizer pill. It so happened that the discovery was made in the UK, Pfizer Buzzpharmacy.net Sandwich in the building that was owned company Pfizer. Brand Viagra is a Pfizer product.

The mechanism of action of the drug is very simple. Viagra greatly increases the blood flow to the penis. It is worth noting that it operates only when sexual stimulation, i.e. after intercourse, the penis men back into a relaxed state. But as soon as there is sexual desire or arousal, it becomes hard erection again.

The later studies in the history of Sildenafil Citrate

Since it was referred Sildenafil citrate does not show any effect on the blood flow in the heart muscle. But the interesting effect evident in male patients who participated in these trials of a drug. They stop abruptly began to object to the company that they were given tablets for testing.

Pfizer-viagraThe reason as it turned out later there was a sharp increase in potency. The active substance is Sildenafil Citrate despite the low effect on the main objectives of the research has been invaluable “side effect” that men are grateful to the entire world.

Pfizer continued the study of Sildenafil Citrate, seriously going to research the drug that can be used as a powerful tool to combat impotence. So the new drug was called Viagra from such words: «Vigor» – power, force, energy; and the Nizagara – the largest and most powerful waterfall in North America.

On March 27, 1998 United States’ Food and Drug Administration has approved the use of Viagra. In 1998 the drug was patented and has appeared in all pharmacies in the country. The further demand for the drug has surpassed all expectations. As a result, Pfizer managed to sell during the first year more than 1 billion of Viagra pills.