Pharmaceutical companies have not yet embraced any method, waiting for something as effective as female methods and risk-free enough to give to healthy men.
制药公司尚未接纳任一种方法,仍在等待能与女性避孕方法同等有效、健康的男士使用零风险的方法。
2
While male contraception has been studied before, no method met the stringent safety and effectiveness criteria that female methods do. It was also unclear whether men would use them.