<prompt> Eltrombopag is a:Thrombopoietin agonistThrombopoietin antagonistErythropoietin agonistErythropoietin antagonist  <response>: Eltrombopag is a oral thrombopoetin agonist, it increases the no. of platelets. So, it is approved for Idiopathic Thrombocytopenic PurpuraITP. Some other such drugs are approved like: Lusutrombopag is used for patients having liver disease. Romilostim is intravenous thrombopoetin agonist. Erythropoetin agonist is Darbopoetin used in chronic renal faiure induced anemia and bone marrow suppresson induced anemia. 