The weird reasons there still isn't a male contraceptive pill

Walker points out that there are several charities working hard to fund research into male contraceptives, but speculates that pharmaceutical companies may have less incentive to develop them when female contraceptive methods work so well. She suggests they're just not going to get the same return on their investment that they would in a pill-free world.

"I think people are more risk-averse in the world of male contraception," says Walker. "Men are more risk-averse, ethics panels are more risk-averse, and possibly pharmacy companies are more risk averse." Walker has been working in the field of contraception and reproductive health for at least 15 years, and while she used to believe that we'd have a male pill soon, this hope has faded. "I'm no longer optimistic [about this]," she says. "Each method seems to hit the hurdle of acceptability."  

Who knows, perhaps the latest promising candidate – the protein that temporarily immobilises sperm in mice – will finally overcome decades of challenges. But it is unlikely many women around the world will be holding their breath.


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