Synonyms: 1,3-Bis[3-[4-(5-chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl]propyl]-1,3-dihydro-2H-benzimidazol-2-one, Domperidone Imp. F (EP), 2H-Benzimidazol-2-one, 1,3-bis[3-[4-(5-chloro-2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)-1-piperidinyl]propyl]-1,3-dihydro- (ACI)