The provision of safe, effective contraception has been revolutionized in the past 40 yr
following the development of synthetic steroids and the demonstration that administration of …

Male hormonal contraception is efficacious, reversible and well tolerated for the target
population of younger men in stable relationships. Suppression of spermatogenesis is …

Methods of male contraception that have been developed so far have mainly focused on the
inhibition of spermatogenesis through suppression of the hypothalamo-pituitary secretion of …

Current male hormonal contraceptive (MHC) regimens act at various levels within the
hypothalamic pituitary testicular axis, principally to induce the withdrawal of the pituitary …

World population continues to grow at an unprecedented rate, doubling in a mere 50 years
to surpass the 7-billion milestone in 2011. This steep population growth exerts enormous …

Despite significant advances in contraceptive options for women over the last 50 yr, world
population continues to grow rapidly. Scientists and activists alike point to the devastating …

Currently approved male-directed contraceptive methods include condoms and vas
occlusion. Vas occlusion is very effective but is intended to be non-reversible. Condoms …

Clear evidence shows that many men and women would welcome new male methods of
contraception, but none have become available. The hormonal approach is based on …

Despite the variety of available female contraceptive methods, many pregnancies (∼ 50%)
are still undesired. Many men (> 60%) want to participate equally with their partner in family …

Despite numerous contraceptive options available to women, approximately half of all
pregnancies in the United States and worldwide are unplanned. Women and men support …