This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autacoids, Subject name: Pharmacology
Wof is injectable COX-2 inhibitor 
Select and explain. 
A. Celecoxib, B. Etoricoxib, C. Parecoxib, D. None of the above
C: Parecoxib
Answer: C: Parecoxib 
Explanation: Parecoxib:- It is a prodrug of valdecoxib suitable for injection, and to be used in post- operative or similar sho-term pain, with efficacy similar to ketorolac. Ref:- kd tripathi;pg num:-206