| 摘要 |
<p>Disclosed is a contraceptive regimen of the progestogen-only type. Good cycle-control and contraceptive efficacy is obtained by providing a progestogen phase of 21-25 days and a placebo or pill-free phase of 1-7 days. The daily dosage of the progestogen is in an amount sufficient to achieve contraceptive working on the basis of ovulation inhibition.</p> |
