... is a synthetic version of a hormone that stimulates the bone marrow to create red cells. The danger comes from an excessive increase in hematocrit, and if the hematocrit is too high then your blood is too viscous, leading to heart attacks. But used in moderation, say to bring the hematocrit of a male from 30 to 36, there should be no danger. Also it is reported to increase cancer danger, but it seems to me that growth of cancer cells is always helped by a richer blood. The cancer danger of a hematocrit of 36 reached via Epogen should be similar to the danger of a patient that has naturally (no epogen) a hematocrit of 36.
Please educate me, the FDA review is so scary, and it is definitely off the mark when it says that EPO does not affect quality of life