[{"from": "human", "value": "What can you tell me about this molecule? [C][N][C][C][C][=Branch2][Ring1][#Branch1][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][N][C][Ring1][O][=N][C][=C][Ring1][Branch1][C][=O][C][C][Ring2][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a H1 histamine receptor antagonist indicated for the prevention of itching associated with allergic conjunctivitis. This drug was approved in July 2010."}]