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
All of the following drugs useful in bronchial asthma are bronchodilators EXCEPT : 
Select and explain. 
A. Theophylline, B. Salmeterol, C. Beclomethasone, D. Ipratropium
C: Beclomethasone
Answer: C: Beclomethasone 
Explanation: None