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
Iodine content in amiodarone is 
Select and explain. 
A. 10-20%, B. 20-40%, C. 40-60%, D. 60-80%
B: 20-40%
Answer: B: 20-40% 
Explanation: Amiodarone contains around 37% of iodine This iodine content is repsonsible for thyroid disorders, corneal microdeposts and pulmnary fibrosis of amiodarone amiodarone is a class 3 agent Ref: KD Tripathi 8th ed