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: Psychiatry
[{'content': 'Formication and delusion of persecution, both are together seen in: \nSelect and explain. \nA. LSD psychosis, B. Amphetamine psychosis, C. Cocaine psychosis, D. Cannabis psychosis', 'role': 'user'}, {'content': "Answer: C \nExplanation: C. i.e. Cocaine psychosis - Cocaine blocks reuptake of norepinephrine, dopamine & serotonin; impairs nerve conduction (LA action) and Vt hypeensionQ. Cocaine causes no physical dependence but moderate/strong psychological dependence. It is unique in not producing significant toleranceQ. lnfact paranoid psychosis observed with cocaine abuse is produced by sensitization (or reverse tolerance)Q. Cocaine cause tactile hallucinations (Magnan's symptoms or formication or cocaine bugs or feeling of creeping insects) and paranoid psychosis (delusions & hallucinations)Q", 'role': 'assistant'}]