A newly released study has raised major concerns about the safety of mifepristone, the abortion pill most commonly used in the United States.
The research reveals that over one in ten women who took the medication experienced serious adverse events requiring emergency medical care, a rate far higher than what the Food and Drug Administration (FDA) currently lists, as reported by Fox News.

Published last week and highlighted by the Ethics & Public Policy Center in Washington, D.C., the study analyzed the largest known dataset of real-world mifepristone use.
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Researchers found the rate of significant complications was 22 times higher than what is reported on the FDA’s approved drug label.
Katie Glenn Daniel, Director of Legal Affairs at SBA Pro-Life America, told Fox News Digital:
“The biggest thing that will shock most readers of this report is just how different the findings in this study are from what the FDA claims on the abortion drug label.” She added:
“What they found is that more than one in ten women will go to the emergency room seeking follow-up care after taking the abortion drugs. The FDA claims that’s more like one in 20.”
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Mifepristone, also known as RU-486, is typically used in conjunction with misoprostol to induce abortions or manage early miscarriages. The Mayo Clinic describes it as a “pregnancy blocker” that helps empty the uterus.
According to the study summary, nearly 11% of women who took mifepristone experienced serious complications, including hemorrhage, infection, or other life-threatening conditions.
These incidents occurred without proper medical oversight, especially as the Biden administration approved mail-order availability of the drug without requiring in-person physician visits.
Dr. Christina Francis, a board-certified OB/GYN, stated, “These reports confirm what physicians like me and our members are seeing in our clinical practice: that abortion drugs pose significant dangers to women.”
She described treating patients who faced life-threatening conditions after taking the pills and called for an urgent re-evaluation of their use.
Francis also criticized the lack of safeguards under current federal policy, warning that women are now able to order abortion drugs online without any medical screening.
Largest-ever study on chemical abortion re-confirms that mifepristone is extremely dangerous. 1 in 10 women had dangerous complications like sepsis or hemorrhaging.
That’s 22X higher than what the Obama FDA approved label read.
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“The fact that these data show a serious complication rate that is 22 times higher than what the FDA states reveals the urgent need for further investigation,” she said.
Approximately 63% of abortions in the U.S. in 2023 were medication-based, up from 53% in 2020, according to the Guttmacher Institute.
Advocates argue that changes made during the Biden administration—including the relaxation of in-person requirements—have worsened the risk to women and girls.
“We knew that the Biden administration’s changes to the abortion drug prescribing, which included allowing these drugs to be sent through the mail, were harmful,” Daniel said.
She cited troubling cases, including one in Louisiana where a mother allegedly forced her daughter to take abortion pills against her will.
Daniel said she hopes the study prompts a policy shift at the FDA under the Trump administration. “A drug that puts one in ten women in the hospital is certainly not a drug that is ‘good for women,’” she said.
She also noted the study’s limitations, emphasizing that it only included data from insured women and select years, meaning many incidents likely remain unreported.
“There is a lot more to look at here,” she added. “We need to have an honest conversation about the fact that 20 years of data shows that these drugs are deadly for children, but they’re also very dangerous for girls.”
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