This page is being served from the Urological Sciences Research Foundation web repository, and was originally posted between 1996-2008. In January 2009 USRF’s founder, Dr. Leonard S. Marks and his staff joined UCLA’s Department of Urology where they are continuing their research. Click for more information.

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Viagra Usage in U.S., March 2000

The eve of the FDA hearing for Uprima (TAP Pharmaceuticals)---the second oral agent for male erectile dysfunction---scheduled for 4/10/2000, finds the following usage data for Viagra:

  • Viagra (sildenafil) was approved by the FDA
    on March 27, 1998.
  • 280,000 U.S. physicians have since prescribed it
    for more than 6.1 million men.
  • 18 million prescriptions have been written.
  • 140 million tablets have been dispensed.
  • 70% of all prescriptions are now for refills.
  • 93% of the population recognizes the name
    (compared to 96% brand recognition for 'Coke.')
  • The overall clinical trials experience to date totals
    more than 11,000 patient years of exposure.
  • The concomitant use of organic nitrates remains the major contra-indication.

Source: Pfizer Marketing Division

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