This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
[{'content': 'All are true about Digoxin except \nSelect and explain. \nA. Causes bradycardia due to increased vagal tone causes bradycardia due to increase the vagal tone, B. Acts by inhibiting Na+K+ATPase in myocardial fibres, C. It is 95% plasma protein bound, D. Primaryly excreted unchanged by glomerular filtration', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Plasma protein binding of digitoxin is high(95%) whearas it is Low(70-80%) for Digoxin Refer kDT 6/e p497', 'role': 'assistant'}]