This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: A.N.S., Subject name: Pharmacology
All of the following drugs are used for the treatment of urinary incontinence except: 
Select and explain. 
A. Oxybutynin, B. Ipratropium, C. Darifenacin, D. Tolterodine
B: Ipratropium
Answer: B: Ipratropium 
Explanation: Ans. (B) Ipratropium(Ref: Katzung 10/e p115; KDT 8th/e p129)Ipratropium is an anticholinergic drug which is used for the treatment of COPD and bronchial asthma.