Hi Cindy,
As far as I understand Revlimid (lenalidomide) can increase all kinds of blood cells. In this abstract they report that "treatment significantly improved the clonogenic potential of bone marrow erythroid, myeloid, megakaryocytic colony-forming cells" - that is early red blood cells, white blood cells and platelet produsing cells.
http://www.ncbi.nlm.nih.gov/pubmed/19773257
Kind regards
Birgitta-A