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
Digoxin induced arrhythmias are treated by all the following except 
Select and explain. 
A. Lidocaine, B. Phenytoin, C. Atropine, D. Quinidine
D: Quinidine
Answer: D: Quinidine 
Explanation: Quinidine is contraindicated with digoxin as quinidine has high protein binding capacity so replace digoxin from protein binding sites. Lidocaine, phenytoin are used for ventricular arrhythmias caused by digoxin, atropine is used if there is bradycardia due to digoxin.Ref: HL Sharma 3rd ed.Pg 324