This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Pharmacology
A patient of biliary colic presented to hospital. Intern gave an injection and the pain worsened. Which is the most likely injection given? 
Select and explain. 
A. Morphine, B. Diclofenac, C. Nefopam, D. Etoricoxib
A: Morphine
Answer: A: Morphine 
Explanation: Morphinecan aggravate ceain condition, e.g., biliary colic, pancreatitis diveiculitis. Inflamed appendix may rupture. Morphine can be given after the diagnosis is established. Diclofenac, Nefopam and Etoricoxib does not cause biliary colic.