[{"from": "human", "value": "Describe this molecule. [C][C][=C][N][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=C][Ring1][=Branch1][O][C][C][C][S][=Branch1][C][=O][C][=N][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][#Branch1][O][C]"}, {"from": "gpt", "value": "The molecule is a highly effective inhibitor of gastric acid secretion used in the therapy of stomach ulcers, dyspepsia, peptic ulcer disease , gastroesophageal reflux disease and Zollinger-Ellison syndrome. The drug inhibits the H(+)-K(+)-ATPase (H(+)-K(+)-exchanging ATPase) in the proton pump of Gastric Parietal Cells.--Pubchem. Omeprazole is one of the most widely prescribed drugs internationally and is available over the counter in some countries."}]