This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Anakinra is a ? 
Select and explain. 
A. IL - 1 antagonist, B. IL - 2 antagonist, C. IL - 6 antagonist, D. IL - 10 antagonist
A: IL - 1 antagonist
Answer: A: IL - 1 antagonist 
Explanation: Ans. is 'a' i.e., IL-1 antagonist Anakinra is an IL-1 antagonist. It is used for some rare syndromes dependent on IL-1 production : Neonatal - onset inflammatory disease Muckle - Wells syndrome Familial cold uicaria Systemic juvenile - onset inflammatory ahritis RA