Definition

A drug used to treat thrombocytopenia (a low blood platelet count) in adults and children with chronic immune thrombocytopenic purpura that did not get better with other treatment. Promacta is also used to treat severe aplastic anemia. It is also being studied in the treatment of other conditions and types of cancer. Promacta binds to the thrombopoietin receptor, which causes the bone marrow to make more platelets. It is a type of thrombopoietin receptor agonist. Also called eltrombopag olamine.