Viagra is the blockbuster of Pfizer pharmaceutical company.  This drug has become known as the cure for erectile dysfunction and impotence in men. 

The onset of Viagra to the market changed lives and the practice of scientific research in the area of sex, sexual health, and treatments of sexual dysfunction in individuals.  Men see this drug as a God sent.  All over the world men flocked to their physician requesting that they too could get the drug that will make sexual satisfaction better.  It has created some seemingly long term changes to sexual conduct of men and women alike.  Millions of men have taken the pill and millions more are seeking a way to get it for themselves.

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