For decades now my dad have had 4 bypasses and the past 3 or 4 years he has essential thrombocythemia, he gets medications to keep the thrombocytes under control but that causes anemia as you all know. For the past year, his doctor gives him Aranesp, at first Aranesp 80 once a week and now the Aranesp 500 every 4 to 5 weeks in combination with diuretics and blood thinners that he was already taken after the bypasses and his blood count is still low (varies between 7.7 and 8.9) but according to his doctor acceptable (he needed blood transfusions a lot more before the Aranesp). When I started to read the side effects and usage of the drug, I noticed that it is normally used for people that have anemia due to renal failure or after chemotherapy and can cause blood clots so now I wonder how it can be given to my father and what will happen if he keeps using it.