Which of the following NSAIDs is an Enolic acid derivative?

Which of the following NSAIDs is an Enolic acid derivative?
A . Ibuprofen
B . Piroxicam
C . Naproxen
D . Oxaprozin
E . Fenoprofen

Answer: B

Explanation:

The following NSAIDs belong to the propionic acid derivatives group – Ibuprofen – Ketoprofen – Naproxen -Fenoprofen – Flurbiprofen – Oxaprozin whereas piroxicam belongs to the class of Enolic acid derivative which also includes other agents like meloxicam and Nabumetone. They are non-selective COX inhibitors and act by preventing the production of certain prostaglandins.