[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=C][Branch2][Ring1][=Branch2][C][=C][N][=C][Ring1][=Branch1][C][S][=Branch1][C][=O][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][=Branch2][O][C][C][C][O][C]"}, {"from": "gpt", "value": "The molecule is an antiulcer drug in the class of proton pump inhibitors. It is a prodrug - in the acid environment of the parietal cells it turns into active sulphenamide form. Rabeprazole inhibits the H+, K+ATPase of the coating gastric cells and dose-dependent oppresses basal and stimulated gastric acid secretion."}]