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: Forensic Medicine
Opium poisoning is treated with:MAHE 06; Bihar 12; UPSC 13 
Select and explain. 
A. Naloxone, B. Atropine, C. Neostigmine, D. Physostigmine
A: Naloxone
Answer: A: Naloxone 
Explanation: Ans. A. Naloxone