Synonym(s): 9,11alpha-Epoxy-17-hydroxy-3-oxo-17alpha-pregn-4-ene-7alpha,21-dicarboxylic acid, gamma-lactone, methyl ester; Cgp 30083; Eplerenone [USAN]; Epoxymexrenone; HSDB 7522; Inspra; Pregn-4-ene-7,21-dicarboxylic acid, 9,11-epoxy-17-hydroxy-3-oxo-, gamma-lactone, methyl ester,...