This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Symptoms and signs in psychiatry and classification, Subject name: Psychiatry
[{'content': 'Angel dust denotes \nSelect and explain. \nA. flunitrazepam, B. .LSD, C. toluene, D. phencyclidine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Hallucinogens * ALSO CALLED AS Psychotomimetic/ Psychedelic * FIRST Man made HALLICINOGEN ==================== Albe Hoffman * MECHANISM OF ACTION Lysergic acid diethylamide=======serotonin * Introduced by Albe Hoffmann and he himself experienced its effects * Phencyclidine =======NMDA antagonist * Also known as angel dust * Related to ketamine=== dissociative anesthetic * Has anti-suicidal propey Reference:kaplon and Sadock, synopsis of psychiatry, 11 th edition , pg no.649', 'role': 'assistant'}]