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Published online 1 April 2003 | Nature | doi:10.1038/news040329-14
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Viagra may harm fertility
Impotence drug makes mouse sperm peak too soon.
Viagra may affect male fertility, warns new research from Queen’s University Belfast. The famous impotence drug appears to scupper sperm and reduce pregnancies in mice, in contrast to human studies, which have found no adverse effects on fertility.
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