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
[{'content': 'why do GLYCOPYROLATE is used as pre-anesthetic medication ? \nSelect and explain. \nA. no central effect as it do not cross BBB, B. as it have few side efects, C. as it increases pharyngeal secreation, D. no post surgical complications', 'role': 'user'}, {'content': 'Answer: A \nExplanation: * Actions of glycopyrrolate are similar to atropine except for some differences,as given below.. * CNS-minimal CNS effects. * CVS-increased hea rate is to a lesser extent and for shoer duration than atropine,hence ,lodynamic sLao.ay when used as premedication. * Similar actions on RS,GIT,GUT and other smooth muscles and glands as atropine. * 2 times more potent rntisialogoguE than atropine. ref : kd tripathi 8th ed', 'role': 'assistant'}]