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': 'A patient of biliary colic presented to hospital Intern gave an injection and the pain worsened which is the most likely injection given \nSelect and explain. \nA. Morphine, B. Diclofenac, C. PIROXICAM, D. Etosicoxib', 'role': 'user'}, {'content': 'Answer: A \nExplanation: REF : KD TRIPATHI 8TH ED', 'role': 'assistant'}]