This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Substance abuse, Subject name: Psychiatry
[{'content': "Disulfiram shouldn't be given for at least how many hrs. after the patient is abstained from alcohol \nSelect and explain. \nA. 12 hrs, B. 14 hrs, C. 48 hrs, D. 96 hrs", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Before initiating the treatment with disulfiram for alcohol dependence, patient should be abstained from alcohol at least for 12hrs. Ref: Essentials of postgraduate psychiatry By JN Vyas 1st ed Pg 329', 'role': 'assistant'}]