[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][Branch1][=C][N][=C][Branch1][Ring2][S][Ring1][Branch1][N][=C][Branch1][C][N][N][C][S][C][C][C][=Branch1][#Branch2][=N][S][=Branch1][C][=O][=Branch1][C][=O][N][N]"}, {"from": "gpt", "value": "The molecule is a histamine type 2 receptor antagonist (H2 blocker) which is commonly used for treatment of acid-peptic disease and heartburn. Famotidine has been linked to rare instances of clinically apparent acute liver injury."}]