This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Pharmacology), Subject name: Pharmacology
[{'content': 'Pirenzepine is used in: \nSelect and explain. \nA. Peptic ulcer, B. Psychosis, C. As sedative, D. Overactive bladder', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. Peptic ulcerPirenzepine is M1 antagonist which is present on the gastric glands. It decreases the acid secretion and thus used in peptic ulcer.', 'role': 'assistant'}]