What condition does Epogen primarily treat?

Epogen, also known as epoetin alfa, is primarily used to treat anemia, especially in patients with chronic kidney disease or those undergoing dialysis. Anemia occurs when there are insufficient red blood cells to carry adequate oxygen to the body's tissues. In cases of chronic kidney disease, the kidneys produce less erythropoietin, a hormone that stimulates the production of red blood cells in the bone marrow. By administering Epogen, the body can increase erythropoiesis (the production of red blood cells), thus alleviating the symptoms of anemia such as fatigue and weakness.

The other options, while they relate to various medical conditions, do not accurately represent the primary use of Epogen. Hyperparathyroidism, fluid overload, and cardiovascular complications are conditions that might require different types of management and treatment, but they are not the primary focus of Epogen’s therapeutic effects. The effectiveness of Epogen in increasing red blood cell counts distinctly positions it as a key treatment for anemia.