This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anticoagulants and Coagulants, Subject name: Pharmacology
[{'content': 'Effect of Heparin is reversed by - \nSelect and explain. \nA. Vitamin K, B. Protamine, C. Hirudin, D. Tranexaemicacid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Protamine "If bleeding occurs, administration of protamine sulfate is indicated".------Katzungo Specific antidote for heparin - Protamine sulfateo Specific antidote for oral anticoagulants - Vit. K1 (phytonadione)', 'role': 'assistant'}]