Hi Vickij,
Your doctor is right when he says that everybody responds differently. Some patients respond after 1 month and others start to respond when the drug already has been stopped after 6 months.
Don't you take Prednisone or a similar drug - Revlimid is supposed to work better when it is combined with for example Prednisone during the first 3 months.
The way Revlimid is working is very complicated. Here is a study about Revlimid and a drug similar to Prednisone. In short Revlimid (lenalidomide) increases the young red blood cells.
http://bloodjournal.hematologylibrar...18/8/2296.full
Kind regards
Birgitta-A