The U.S. Supreme Court issued a stay in a case that calls into question the Food and Drug Administration’s approval of the abortion drug mifepristone.

The stay will last until at least 11:59 p.m. on Wednesday, April 19, 2023, meaning there will be not immediate change to how providers prescribe mifepristone. Supreme Court Justice Samuel Alito is requiring any responses to be filed by noon on April 18. 

Last week, Judge Matthew Kacsmaryk, who was appointed by former President Donald Trump, blocked the FDAs approval of mifepristone following a lawsuit by an anti-abortion rights group, claiming that the FDA rushed the drugs approval more than two decades ago and that it poses health risks to those who use it. 

The Justice Department, on behalf of the Biden administration, appealed the ruling to the Fifth Circuit Court of Appeals. It ruled that the drug could still be prescribed, but left in place some restrictions. 

The Justice Department strongly disagrees with the Fifth Circuits decision in Alliance for Hippocratic Medicine v. FDA to deny in part our request for a stay pending appeal, Attorney General Merrick Garland said in a statement.

Mifepristone is one of two medications the FDA has approved to be taken together one after another for a medicated abortion. Mifepristone is a one-dose pill only approved for patients up to 10 weeks into a pregnancy, or 70 days.

The Department of Justice said in its filing on behalf of the administration that last weeks ruling would immediately render all extant doses of mifepristone misbranded because their labeling would be inconsistent with the operative conditions of approval. The generic version of the drug would cease to be approved altogether. FDA and mifepristones sponsor would have to adjust the drugs labeling to account for the lower courts actions a process that could take months.

The decision comes as many Republican-led states try to ban or severely restrict access to abortion. The Biden administration has said that abortion pills should still be accessible through the mail. 

According to the Guttmacher Institute, which advocates for abortion rights, 98% of medication abortions in the United States in 2020 used the mifepristone and misoprostol combination. As for safety, a 2022 Scripps News investigation found that for every 1 million patients who used mifepristone, 6 and a half patients died, and that the death rate for penicillin is 4 times higher.

Drugmaker Danco said the Fifth Circuit court was flawed in its decision. 

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