PHARMACEUTICAL CONTRACEPTIVE PREPARATIONS AND PACKAGES CONTAINING FROM 20-35 UNIT DOSAGES COMPRISING AN ESTROGEN AND A PROGESTIN; THE UNIT DOSAGES HAVING ALTERNATING ESTROGEN AND PROGESTIN DOMINANCE

摘要

This invention is concerned with a contraceptive formulation and a method of contraception which employs a combination of estrogen and progestin and wherein a short period of relatively dominant estrogenic activity alternates with a short period of relatively dominant progestagenic activity. The invention also concerns a hormonal replacement formulation and method for use in menopausal or castrate women which employs a similar combination of estrogen and progestin.