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': 'All of the following are deliriant poisons, EXCEPT: \nSelect and explain. \nA. Cannabis, B. Belladonna, C. Dhatura, D. Aconite', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Dhatura, Cannabis, and Belladonna are deliriant poisons. Aconite is a cardiac poison. Hypotension, cardiac arrhythmia with AV block occurs. At first there is tachycardia, but in later stages bradycardia occurs due to AV block. Ref: The Essentials of Forensic Medicine and Toxicology by KS Narayan Reddy, 27th edition, Page 551-552.', 'role': 'assistant'}]