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': 'Which of the following is advocated in dicoumarol poisoning: March 2005 \nSelect and explain. \nA. Warfarin, B. Heparin, C. LMWH, D. Vitamin K', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D: Vitamin K Dicoumarol is a competitive inhibitor of Vitamin K preventing the formation of prothrombin. Administration of Vitamin K is the antidote for dicoumarol toxicity. Follow-up is done by measuring the prothrombin time (PT).', 'role': 'assistant'}]