[{"from": "human", "value": "Describe this molecule. [C][N][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][=N][C][=C][Branch1][#Branch2][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][Cl][N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][S]"}, {"from": "gpt", "value": "The molecule is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent."}]