MESOPROGESTINS PROGESTERONE RECEPTOR MODULATORS AS A COMPONENT OF FEMALE CONTRACEPTIVES

摘要

The present invention relates to the use of mesoprogestins for the production of a pharmaceutical for female contra-ception, to a pharmaeutical preparation for female contraception and to a method of female contraception administering effective amounts of a mesoprogestin in a female desiring contraception. Optionally the mesoprogestin can be used in combination with an estrogen. Mesoprogestins are defined as compounds possessing both agonistic and aotagonistic activities at the progesterone recep-tor (PR) in vivo. They stabilize the function of PR at an intermediate level of agonistic and antagonistic. Corresponding funcţional states cannot be achieved with progestins or antiprogestins. J867, J912, J956 and J1042 are the mesoprogestins preferred according to the invention.