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Interactions

Hormonal Contraceptives/Mifepristone

This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.

Medical warning:

Serious. These medicines may interact and cause very harmful effects. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.

How the interaction occurs:

Mifepristone interferes with the way hormonal contraceptives work and results in the loss of a pregnancy.

What might happen:

Hormonal contraceptive products (such as "the pill", the "mini-pill", Norplant, birth control injections, and the patch) may not prevent you from becoming pregnant while you are taking mifepristone. If you become pregnant while taking mifepristone, you will have a miscarriage.

What you should do about this interaction:

Let your healthcare professionals (e.g. doctor or pharmacist) know that you are taking these medicines together. If you are a female of reproductive age and have not been surgically sterilized (tubal ligation, double ovariectomy, or hysterectomy) you should use a non-hormonal form of birth control (such as an intrauterine device [IUD] or barrier methods) while taking mifepristone and for one month after stopping mifepristone. Discuss birth control options with the doctor that prescribed mifepristone for you and with your gynecologist (OB/GYN). Be sure to undergo a pregnancy test if you stop taking mifepristone for 14 days before restarting the medication. If you think that you may be pregnant or have had a miscarriage, contact your doctor right away.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.Reference:1.Korlym (mifepristone) US Prescribing Information. Corcept Therapeutics February 17, 2012.

References:

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.

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