Men taking Viagra may be at the risk of having a reduced fertility. The report coming out of the latest study on the effect of Viagra in the motility and life span of sperm would definitely give a rude shock to many would-be fathers, who have been feeding on a staple diet of Viagra for an enhanced sexuality. Men may need some time of reckoning, weighing the pros and cons of the after-effects of Viagra use, before they start using the erectile dysfunction pill.

David Glenn, one of the pioneers in the team that conducted the test tube experiments at Queen's University in Belfast, Northern Ireland said,