Displaying 5 results of Mifepristone Stable Isotopes Mifepristone stable isotopes are a group of isotopes of the drug mifepristone, which is used for medical termination of pregnancy and treatment of certain medical conditions. These stable isotopes are used in research studies to track the drug's metabolism and pharmacokinetics in the body. They are also used in the production of radiolabeled mifepristone, which is used in imaging studies to visualize the drug's distribution in tissues. The use of stable isotopes in drug research is an important tool for understanding the mechanisms of drug action and developing new therapies.