This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Which one of the following drugs exacerbate reflux esophagitis? 
Select and explain. 
A. Cisapride, B. Chlorpropamide, C. Theophylline, D. Metoclopramide
C: Theophylline
Answer: C: Theophylline 
Explanation: .