This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pharmacology
Leukotriene receptor antagonist used for bronchial asthama is 
Select and explain. 
A. Zafirlukast, B. Zileuton, C. Cromolyn Sodium, D. Aminophylline
A: Zafirlukast
Answer: A: Zafirlukast 
Explanation: Examples for leukotriene receptor antagonist are Montelukast and Zafirlukast ESSENTIALS OF MEDICAL PHARMACOLOGY 8TH EDITON Page No :222