This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'The dose of Digoxin should be reduced when given along with - \nSelect and explain. \nA. Quinidine, B. Rifampicin, C. Indomethacin, D. Antacids', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Quinidine Quinidine reduces binding of digoxin to tissue proteins as well as its renal/biliary clearance. Its plasma concentration is then doubled and toxicity may occur if dose is not reduced.", 'role': 'assistant'}]