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': 'Ivabradine is used for management of ? \nSelect and explain. \nA. Stable angina, B. Pre renal azotemia, C. Alzheimers disease, D. Anti smoking agent', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Stable angina(Ref: KDT Vh/e p. 554; Cardiac drug development guide by Micheal Pugsley p. 381)IvabradineIt is an investigational inhibitor ofsino-atrial node.It is a relatively selective If(funny current) Sodium channel blocker of early pa of slow diastolic depolarization (phase 4) that reduces hea rate by inhibiting the hyperpolarization-activated sodium channel in SA node.Hea rate is a major determinant of angina in coronary disease.Therefore, lowering the hea rate is an impoant therapeutic approach in the treatment of stable angina.", 'role': 'assistant'}]