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Viagra May Cause Infertility

Research from Britian shows that the famous impotence drug appears to impair sperm and reduce pregnancies in mice, in contrast to human studies, which have found no negative effects on fertility. Around 23 million men worldwide have taken Viagra since its launch in 1998 and the majority are over 50 years old. My guess is that the vast majority of men who seek to use this Band-Aid have not considered more natural supplement options.

Nature April 1, 2004

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