[{"from": "human", "value": "What can you tell me about this molecule? [C][N][/C][=Branch1][#Branch1][=C][\\N+1][=Branch1][C][=O][O-1][/N][C][C][S][C][C][=C][C][=C][Branch1][Ring2][O][Ring1][Branch1][C][N][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a histamine type 2 receptor antagonist (H2 blocker) which is widely used for treatment of acid-peptic disease and heartburn. Ranitidine has been linked to rare instances of clinically apparent acute liver injury."}]