Vocalist.org archive


From:  "John Messmer, M.D." <jjm23@p...>
"John Messmer, M.D." <jjm23@p...>
Date:  Fri Feb 23, 2001  5:02 am
Subject:  Re: [vocalist] Uh....Viagra


> How does Viagra affect the voice ?

It doesn't; it inhibits an enzyme called phosphodiesterase type 5 found in
the genitals and the retina. Other than its effects on blood flow to the
penis and the vagina, it can occasionally make a blue color appear in the
vision which is harmless and temporary.

John

John J. Messmer, M.D.
Assistant Professor, Family & Community Medicine
Penn State College of Medicine


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