This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'Which of the following is not used in delirium - \nSelect and explain. \nA. Haloperidol, B. Lithium, C. Diazepam, D. Olanzapine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Drugs used for delirium \n1) Typical antipsychotics : - Haloperidol (DOC), Thioridazine, Chlorpromazine.\n2)Atypical antipsyclzotics : - Risperidone, quetiapine, olanzapine.\n3) Benzodiazepines (for delirium tremens) : - Chlordiazepoxide, Diazepam, Lorazepam, Clonazepam.', 'role': 'assistant'}]