This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NSAIDs, Gout and Rheumatoid Ahritis, Subject name: Pharmacology
Antidote for paracetamol poisoning is 
Select and explain. 
A. N- acetylcysteine, B. Sodium bicarbonate, C. BAL, D. EDTA
A: N- acetylcysteine
Answer: A: N- acetylcysteine 
Explanation: Paracetamol - has only antipyretic and analgesic activity. It does not possess anti-inflammatory activity as it is believed to be inactivated by the free oxygen radicals generated at site of inflammation. Metabolite of PCM | Acts on TRPV receptor (Vanilloid Receptor) Analgesic action of it may be mediated by this receptor PCM has antidote i.e. N-Acetylcysteine