This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Combination of Doxylamine + ______ is considered as safest antiemetic drug in pregnancy \nSelect and explain. \nA. Palonosetron, B. Pyridoxine, C. Aprepitant, D. Domperidone', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Doxylamine (antihistamine) with Pyridoxine (vitamin B6) is considered as safest antiemetic drug in pregnancy.', 'role': 'assistant'}]