This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autacoids, Subject name: Pharmacology
Second generation antihistamines used in allergic rhinitis are except 
Select and explain. 
A. Azelastine, B. Fexofenadine, C. Chlorpheneramine maleate, D. Desloratidine
C: Chlorpheneramine maleate
Answer: C: Chlorpheneramine maleate 
Explanation: Chlorpheniramine and promethazine are first generation antihistamines. Refer kDT 6/e p158