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: Medicine
[{'content': 'Drug of choice for intractable hiccups - \nSelect and explain. \nA. Promethazine, B. Chlorpromazine, C. Scopolamine, D. Clozapine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. ChlorpromazineHiccups are repeated spasmodic involuntary contractions ofthe diaphragm that occur when you inhale.Persistent or Intractable Hiccups:-i) Chlorpromazine - Drug of choice ii) Baclofen iii) Diphenylhydantoiniv) Valproic acid v) Amitriptyline vi) Metoclopromide', 'role': 'assistant'}]