Synonyms: 2H-Benzimidazol-2-one, 5-chloro-1-[1-[3-(2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)propyl]-1-oxido-4-piperidinyl]-1,3-dihydro-, 2H-Benzimidazol-2-one, 5-chloro-1-[1-[3-[(2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)propyl]-4-piperidinyl]]-1,3-dihydro-, N-oxide, Domperidone N-Oxide