Es·tro·step (esґtro-step) trademark for therapeutic regimens containing norethindrone acetate and ethinyl estradiol. When a week of placebo ferrous fumarate tablets are included, the trademark is Estrostep Fe.

Medical dictionary. 2011.

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  • Estrostep — is the brand name for a female combined oral contraceptive pill, distributed by Warner Chilcott. It is the first of its kind in that it is the only oral contraceptive that changes estrogen levels while keeping progestin levels constant. The… …   Wikipedia

  • Oral contraceptive formulations — Oral contraceptives come in a variety of formulations. The main division is between combined oral contraceptive pills, containing both estrogen and synthetic progestogens (strictly progestins, the term used in the United States, but the former… …   Wikipedia

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