COMBINATIONS OF ENDOMETRIAL SPARING PROGESTINS AND ENDOMETRIAL ATROPHIZING PROGESTINS WITH ESTROGENS, IN ORAL CONTRACEPTION

摘要

An oral contraception regimen which comprises sequentially administering two or more progestational agents exhibiting different effects on the human endometrium in combination with an estrogen. The invention is also directed to an extended use oral contraception regimen comprising the sequential administration of two or more progestational agents in combination with an estrogen.