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Study links Viagra to infertility.(Brief article)

Consumer Reports

| October 01, 2007 | COPYRIGHT 2007 Consumers Union of the United States, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

Sildenafil (Viagra) treats erectile dysfunction, but a small study published in May suggests that the drug might impair male fertility. Semen samples from 57 men were exposed to the same concentrations of sildenafil present in the blood 30 minutes after taking a 100-milligram pill. They found that the drug made sperm more active and caused premature activation of an enzyme needed for the penetration of an egg, potentially thwarting fertilization. The researchers note that their findings conflict with those of some previous ...

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