The abortion pill mifepristone has been on uncertain legal ground ever since a Texas judge ruled that the U.S. Food and Drug Administration (FDA)’s approval more than two decades ago should be suspended. After the Department of Justice appealed the decision and requested that the Supreme Court step in, the high court decided that mifepristone should remain available while courts continue to decide its legal fate in a potentially lengthy appeals process. With one abortion pill in legal limbo, experts are now worried about possible threats to the other one: misoprostol.