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
Half-life of digoxin is? 
Select and explain. 
A. 24 hours, B. 40 hours, C. 48 hours, D. 60 hours
B: 40 hours
Answer: B: 40 hours 
Explanation: Digoxin half-life is long -40 hrs It gets trapped in muscles and vd -volume of distribution is more elimination is difficult in cases of poisoning Ref: KD Tripathi 8th ed.