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A 43-year-old member asked:

how long can ellaone delay period ?

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Dr. Ralph Boling
Obstetrics and Gynecology 39 years experience
May not delay period: ellaOne is an emergency contraceptive pill containing 30 mg of ulipristal acetate, a progesterone receptor modulator. It is effective for up to 5 days after unprotected sex. It is currently available in some countries in Europe. It is more effective than Plan B. It shuts down the progesterone support for a developing pregnancy, and this would likely start up bleeding.

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Last updated Apr 9, 2020
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