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Pharmacology
A patient presented with acute exacerbation of bronchial asthma. Salbutamol inhalation didn't improve the condition of the patient. So, intravenous coicosteroids and aminophylline were added and the condition improved. What is the mechanism of action of coicosteroids in this condition?
They cause bronchodilatation when given with xanthines
They increase bronchial responsiveness to salbutamol
They increase the action of aminophylline on adenosine receptors
They increase the mucociliary clearance
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