Displaying 2 results of Lenalidomide Stable Isotopes Lenalidomide is an immunomodulatory drug used for the treatment of multiple myeloma, myelodysplastic syndromes, and lymphoma. Lenalidomide Stable Isotopes are isotopically labeled versions of lenalidomide that have a stable nucleus and do not decay over time. These isotopes are used in research and development to study the pharmacokinetics and metabolism of lenalidomide in vivo and in vitro.