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
Treatment of acute asthma include all except- 
Select and explain. 
A. Prednisolone, B. Salbutamol, C. Salmeterol, D. Ipratropium bromide
C: Salmeterol
Answer: C: Salmeterol 
Explanation: Ans. is 'c' i.e., Salmeterol o Long acting Beta - 2 agonists have no role in acute attack of asthma. They are useful in persistent asthma.