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
[{'content': 'Drug NOT given in organophosphorous poisoning: September 2012 \nSelect and explain. \nA. Atropine, B. Pralidoxime, C. Activated charcoal, D. Physostigmine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D i.e. Physostigmine Organophosphate poisoning It results from exposure to organophosphates (OPs), which cause the inhibition of acetylcholinesterase (AChE), leading to the accumulation of acetylcholine (ACh) in the body. The effects of organophosphate poisoning on muscarinic receptors are recalled using the mnemonic SLUDGEM: (Salivation, Lacrimation, Urination, Defecation, Gastrointestinal motility, Emesis, miosis) An additional mnemonic is MUDDLES: miosis, urination, diarrhea, diaphoresis, lacrimation, excitation, and salivation. Pyridostigmine is a parasympathomimetic and a reversible cholinesterase inhibitor.', 'role': 'assistant'}]