Relipoietin 4000IU injection contains active components such as Recombinant human erythropoietin alfa/epoetin alfa. It is a medication that belongs to a class of drugs called erythropoiesis-stimulating agents (ESAs). This medication treats anemia caused by chronic kidney disease (CKD), cancer chemotherapy, or HIV infection treatment with zidovudine. It also reduces the need for red blood cell transfusions in patients at high risk for blood loss due to planned surgery or other procedures.