This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': 'Which one of the following agents has been associated with hemorrhagic stroke? \nSelect and explain. \nA. Phenylpropanolamine, B. Terfenadine, C. Quinidine, D. Fenfluramine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Phenylpropanolamine is an ingredient used in many over-the-counter (OTC) and prescription cough and cold medications as a decongestant and in OTC weight loss products. Adverse events repoed with these products led to concerns that this ingredient might increase the risk of hemorrhagic strokes Ref Harrison20th edition pg 2456', 'role': 'assistant'}]