This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Forensic Medicine
[{'content': 'Angel dust is - \nSelect and explain. \nA. Phencyclidine, B. LSD, C. Morphine, D. Cannibis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Phencyclidine (PCP), a phenylcyclohexylamine compound, is easily synthesised from piperazine, cyclohexanone, and potassium cyanide. It is commonly referred to by addicts as "angel dust" or "PCP" Ref: K.S.Narayan Reddy\'s Synopsis of Forensic Medicine and Toxicology, 29th edition, Chapter 30, page-332.', 'role': 'assistant'}]