Displaying 1 results of Pralatrexate Stable Isotopes Pralatrexate is a medication used to treat certain types of cancer, including lymphoma and lung cancer. Pralatrexate Stable Isotopes are non-radioactive isotopes of pralatrexate that are chemically identical to the radioactive form of the drug. These stable isotopes are used in research and clinical studies to investigate the pharmacokinetics, metabolism, and efficacy of pralatrexate without the risk of radiation exposure.