Lenalidomide (5mg, 10mg , 25mg) is a prescription medicine, used to treat adults with multiple myeloma (MM) in combination with the medicine dexamethasone, or as maintenance treatment after autologous hematopoietic stem cell transplantation (a type of stem cell transplant that uses your own stem cells). Lenalidomide should not be used to treat people who have chronic lymphocytic leukemia (CLL) unless they are participants in a controlled clinical trial. It is not known if Lenalidomide is safe and effective in children.What is the most important information I should know about Lenalidomide ?Before you begin taking Lenalidomide , you must read and agree to all of the instructions in the Lenalidomide REMS program. Before prescribingLenalidomide , your healthcare provider will explain the Lenalidomide REMS program to you and have you sign the Patient-Physician Agreement For