This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Adverse Drug Effect, Subject name: Pharmacology
[{'content': 'True about anaphylactoid reaction caused by NSAIDs- \nSelect and explain. \nA. Caused by all NSAIDs, B. COX-2 inhibitors are safe, C. Related to hypersensitivity reaction, D. Not related to inhibition of COX', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., COX-2 inhibitors are safe", 'role': 'assistant'}]