Home » Drug Information » FDA-Approved Drugs » 1998
Medical Areas: Cardiology/Vascular Diseases
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Drug Information
The following information is obtained from various newswires, published
medical journal articles, and medical conference presentations.
Company: Pfizer
Approval Status: Approved March 1998
Treatment Area: impotence
Viagra has been approved for the treatment of impotence in men.
Based on clinical trials, Pfizer said men should take the pill
about an hour prior to a sexual event and that Viagra only works if
a man is sexually aroused.
In clinical trials involving some 3,000 patients, 60 to 80% of
those who took the drug reported improvements in the ability to
achieve erections and sustain them after penetration, while about
20% of the patients who took a placebo reported improved
erections.
Side effects were mostly mild and included headache,
indigestion, and occasionally a temporary blue tinge to one's
vision.
