 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  This medication is used to treat anemia (low red blood cell count) in people with long-term serious kidney disease (chronic kidney failure), people receiving zidovudine to treat HIV, and people receiving chemotherapy for some types of cancer (cancer that does not involve the bone marrow or blood cells). It may also be used in anemic patients to reduce the need for blood transfusions before certain planned surgeries that have a high risk of blood loss (usually given with an anticoagulant/"blood thinner" medication such as warfarin to lower the risk of serious blood clots). Epoetin alfa works by signaling the bone marrow to make more red blood cells. This medication is very similar to the natural substance in your body (erythropoietin) that prevents anemia.This monograph is about the following epoetin alfa products: epoetin alfa and epoetin alfa-epbx. How to use Epogen Vial Read the Medication Guide and Patient Information Leaflet provided by your pharmacist before you start using this medication and each time you get a refill. If you have any questions, ask your doctor or pharmacist. This medication is given as an injection under the </s>