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: Pharmacology
[{'content': 'True about barbiturates ? \nSelect and explain. \nA. Have steep dose response curve, B. Have analgesic action, C. Are enzyme inhibitors, D. Acidification of urine is done in poisoning', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is ,a, i.e., Have steep dose response curve(Ref: Goodmen & Gillmen |2',h/e p. 471)Barbiturates depress all areas of CNS, but the reticular activating system is most sensitive.Barbiturates have steep dose response curve.Except For phenobarbitone in epiteliu andthiopentonein anaesthesia,barbituratesare used now'The enzwe inducing propey- of jhnobarbitine can be utiliad to hasten clearance of congenital nonhemolytic jaundiceand kernicterus,There is no specific antidote for their pokoning", 'role': 'assistant'}]