Synonyms: 1H-Benzimidazole,5-methoxy-2-[(S)-[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-,potassium salt (9CI); 1H-Benzimidazole,5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-, potassiumsalt, (S)-;(S)-5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazolepotassium salt; (S)-Omeprazole potassium; Esomeprazole potassium