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': 'Ivabradine is indicated for: \nSelect and explain. \nA. Angina, B. PSVT, C. Cardiomyopathy, D. Irritable bowel syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. AnginaIvabradine is bradycardic agent, it selectively blocks the sodium channel and reduce the heart rate by inhibiting the hyperpolarized activated sodium channel, it reduces angina attacks similar to beta blocker and CCB.', 'role': 'assistant'}]