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
A highway truck driver has profuse rhinorrhoea and sneezing. .Which among the following drug would you prescribe him 
Select and explain. 
A. Pheneramine, B. Promethazine, C. Dimenhydrine, D. Cetrizine
D: Cetrizine
Answer: D: Cetrizine 
Explanation: Is a non sedating antihistamines drugs and is preferred for the patients requiring constant attention. it does not cause sedation impairment of psychomotor function. Other Drugs listed in the question are first generation antihistamines. Refer KDT 6/e p157