It is a side effect of an anti-rejection drug and Japanese researchers discovered that the drug made mice infertile. It took 4-5 days for the mice to become infertile, and once they stopped taking the drug, about a week for them to regain their fertility.

Obviously, since the research is in mice, a human version is some time off, but there could soon be away for men to be sure that birth control is being used (other than a condom). So, guys, would you take a pill that made you infertile?

Take our poll and leave your thoughts in the comment section below.