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 of the following anti-asthma drug is not indicated by oral route of administration in pregnancy - \nSelect and explain. \nA. Salbutamol, B. Prednisolone, C. Theophylline, D. Ipratropium bromide', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Ipratropium bromide o Ipratropium, if used is administered only by inhalation route, not orally.", 'role': 'assistant'}]