Mikropartikler bestående af estradiol og cholesterol

摘要

The invention provides a method for effecting simultaneous contraception and hormone replacement therapy in a female mammal comprising administering to said mammal a pharmaceutical formulation comprising particles of 17-²-estradiol and cholesterol in about a 1:1 molar ratio, and particles of progesterone; wherein the weight ratio of 17-²-estradiol to progesterone is about 1:40.