[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][C][C][Branch2][Branch1][Ring1][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Branch2][Ring2][Ring2][C][C][C][N][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a Histamine-1 Receptor Antagonist. The mechanism of action of fexofenadine is as a Histamine H1 Receptor Antagonist."}]