Strategies to facilitate the development of new contraceptives.

Contraception is not readily accessible to much of the world's population and, in any case, no method is 100% effective or appropriate for all users. There is a pressing need for new methods to address the diverse requirements of the global community of men and women at all stages of their reproductive lives. This article will look at some of the new opportunities in contraceptive research and highlight strategies to overcome old challenges for the development of novel contraceptives.