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: Medicine
[{'content': 'Which one of the following drugs exacerbate reflux esophagitis \nSelect and explain. \nA. Cisapride, B. Chlorpropamide, C. Theophylline, D. Metoclopramide', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Drugs that can increase acid reflux and worsen GERD include: Anticholinergics Tricyclic antidepressants Calcium channel blockers Nitrates Opioids Progesterone Quinidine Benzodiazepines Theophylline ref - Harrisons internal medicine 20e pg2215,2219', 'role': 'assistant'}]