<prompt> A boy is planning to travel by bus which of the following drug can be used to prevent motion sickness in this personMeclizinePromethazineFexofenadineLORATADINE  <response>: 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 