This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
[{'content': 'Which of the following drugs deposited in the muscles \nSelect and explain. \nA. Verapamil, B. Digoxin, C. Adenosine, D. Phenytoin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (Digoxin) (499-KDT 6th)Cardie glycosides (Digitoxin, digoxin, lanatoside-C, Quabain)* All are concentrated in the heart (~ 20 times than plasma) skeletal muscle, liver and kidney* All are cumulative drugs', 'role': 'assistant'}]