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': 'Latest (most recent) oral direct thrombin inhibitor is - \nSelect and explain. \nA. Ximelagatran, B. Indraparinux, C. Dabigatran, D. Fondaparinux', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans is 'c' i.e. Dabigatran o Ximelagatran was the first oral direct thrombin inhibitor approved; however, it was subsequently withdrawn from the market because of repos of liver failure. o Recently a new oral direct inhibitor, dabigatran, was approved for use in Europe for prevention of various thromboembolism in patients who have undergone hip or knee replacement surgery.", 'role': 'assistant'}]