| 摘要 |
The fixed extended cycle method of female hormonal contraception includes continuous daily administration of daily dosage units of a monophasic preparation to a woman over a time period of nx21 days, wherein n=2, 3, 4 or 5, immediately followed by a seven-day pill-break in which the monophasic preparation is not administered. Each of the daily dosage units contains from 0.5 to 3.0 mg of dienogest and from 10 to 30 mug of ethinyl estradiol. In addition to effective contraceptive action the method significantly reduces the bleeding rate, is simple and is effective in treating acne, dysmenorrhea and/or endometriosis.
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