Mifepristone access is coming before the US Supreme Court. How safe is this abortion pill?

The U.S. Supreme Court will take up a case Tuesday that could impact how women get access to mifepristone, one of the two pills used in the most common type of abortion in the nation.

The central dispute in the case is whether the Food and Drug Administration overlooked serious safety problems when it made mifepristone easier to obtain, including through mail-order pharmacies.

Legal briefs filed with the court describe the pill's safety in vastly different terms: Medical professionals call it “among the safest medications” ever approved by the FDA, while the Christian conservative group suing the agency attributes “tens of thousands” of “emergency complications” to the drug.

Earlier this year, a medical journal retracted two studies that claimed to show the harms of mifepristone. The studies were cited in the pivotal Texas court ruling that brought the matter before the Supreme Court. The publisher cited conflicts of interest by the authors and flaws in their research, although the studies' lead author called the retractions a baseless attack.