Viagra was born in 1991, when a British pharmacist, Nicholas Terrett patented a sildenafil citrate compound. With the resulting effect of sildenafil, Pfizer decided to commercialize the use of Viagra for the wider community in 1996. 2 years later, the license for the sale of Viagra as an erectile dysfunction drug was given by the FDA.
The success of Viagra can be remarkable. In the first year of sales, one pill is priced 8 to 10 USD. Of all the sales at the time, Pfizer was able to achieve a profit of 1 billion USD.
Currently, Viagra is a reliable treatment product for dealing with sexual dysfunction problems, especially impotence.
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