This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Pharmacology
[{'content': 'Scopolamine is used mostly in: \nSelect and explain. \nA. Hyperemesis gravidarum, B. Vomiting, C. Constipation, D. Motion sickness', 'role': 'user'}, {'content': "Answer: D \nExplanation: (Ref: Katzung's Pharma, 14th ed. pg. 135)* Scopolamine (hyoscine) is a prototypic muscarinic receptor antagonist and is one of the best agents for the prevention of motion sickness.* Scopolamine has many effects in the body including decreasing the secretion of fluids, slowing the stomach and intestines, and dilation of the pupils.* Scopolamine is also used to relieve nausea, vomiting, and dizziness associated with motion sickness and recovery 3 from anesthesia and surgery.", 'role': 'assistant'}]