A potential new male contraceptive drug has just undergone its first tests in human volunteers. The results give the first indication that the drug, which does not use artificial hormones or affect testosterone production by the testes, may be safe in humans.
While previous attempts have been made to develop a male contraceptive in the past, these largely failed to pass clinical trials due to their unacceptable side-effects. But this newest contraceptive works differently from past attempts, which means it doesn’t require surgery and is much less likely to cause hormonal side-effects – problems that have helped stop previous attempts from reaching the market.
