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': 'Which antianginal drug can be safely used with drugs used for treatment of erectile dysfunction? \nSelect and explain. \nA. Nitrates, B. Calcium channel blockers, C. pFOX inhibitor, D. Potassium channel opener', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is'c'i.e., pFOX inhibitor The metabolic modulators (eg, trimetazidine) are known as pFOX inhibitors because they paially inhibit fatty acid oxidation pathway in myocardium.Antianginal action of trimetazidine is independent of any blood pressure reduction.It can be effectively used as an antianginal drug in the CAD patients with erectile dysfunction in the place of nitrates to allow free use of sildenafil and similar agents.", 'role': 'assistant'}]