This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous General Anesthesia, Subject name: Anaesthesia
[{'content': 'Drug used to control secretions in GA: \nSelect and explain. \nA. Hyoscine, B. Glycopyrrolate, C. Pethidine, D. Lorazepam', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. (b) GlycopyrrolateRef: Ajay yadav's anesthesia 4th ed./48* To control secretions, anti-cholinergics are used: Glycopyrrolate, Atropine and Scopolamine.* Glycopyrrolate is preferred over atropine and scopolamine because it doesn't cross blood brain barrier. Therefore it is devoid of central side effects.Drugs Used for Premedication:* Sedative/Anti-anxiety:# Lorazepam MC used# Midazolam in day care surgery* Anti-emetics: Hyoscine (Most potent), Ondensatron, Metoclopramide* To decrease pain: Morphine and Pethidine", 'role': 'assistant'}]