This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
A boy is planning to travel by bus which of the following drug can be used to prevent motion sickness in this person 
Select and explain. 
A. Meclizine, B. Promethazine, C. Fexofenadine, D. LORATADINE
B: Promethazine
Answer: B: Promethazine 
Explanation: In motion sickness usually req prophylatic Rx with 1stgem antihistamines such as scopolamine patch used 9her before travel Only prometeroyine is the 1Stgen antihistamine in the option REF : KD TRIPATHI 8TH ED