[{"from": "human", "value": "Could you provide a description of this molecule? [C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C][N][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][N][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][=Branch2][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][F]"}, {"from": "gpt", "value": "The molecule is a synthetic piperidinyl-benzimidazol derivative with antiallergic properties, Astemizole acts as a reversible competitive inhibitor of histamine H1 receptors, with less anticholinergic effects compared to related agents. It is a long-acting, non-sedative antihistaminic used in the treatment of seasonal allergic rhinitis, asthma, allergic conjunctivitis, and chronic idiopathic urticaria. (NCI04)"}]