This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Asthma, Subject name: Pharmacology
[{'content': 'Drug not used in management of bronchial asthma? \nSelect and explain. \nA. Phosphodiesterase inhibitor, B. Steroids, C. Beta agonist, D. Cholinergic drugs', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Cholinergic drugsCholinergic drugs cause bronchospasm and are contraindicated in asthma. Rather anticholinergic drugs are used in case of asthma.', 'role': 'assistant'}]