Synonyms: 2-Pyrrolidinone,1-ethyl-4-(2-morpholinoethyl)-3,3-diphenyl-, hydrochloride (7CI);2-Pyrrolidinone, 1-ethyl-4-(2-morpholinoethyl)-3,3-diphenyl-, monohydrochloride(8CI); 2-Pyrrolidinone, 1-ethyl-4-[2-(4-morpholinyl)ethyl]-3,3-diphenyl-,monohydrochloride (9CI);1-Ethyl-4-(2-morpholinoethyl)-3,3-diphenyl-2-pyrrolidinone hydrochloride;3,3-Diphenyl-1-ethyl-4-(2-morpholinoethyl)-2-pyrrolidinone hydrochloride;Dopram; Doxapram hydrochloride; NSC 170958; Stimulexin