REVLIMID® (lenalidomide) is indicated for patients with transfusion-dependent anemia due to Low- or Intermediate-1–risk myelodysplastic syndromes (MDS) associated with a deletion 5q cytogenetic abnormality with or without additional cytogenetic abnormalities.
The Wikipedia article on lenalidomide says it’s a derivative of thalidomide and that it does have some negatives. Nonetheless, in this article they are addressing low doses of lenalidomide.
Having read the contraindications, adverse reactions and so forth I think I'll stick with Echinacea, Astragalus and other immune system stimulating herbs.
Since this drug is said to rebalance cytokines, I also wondered about its affect in some autoimmune diseases, where cytokines and the rest of the inflammatory cascade are out of kilter.