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With both drugs , excessive dopamine release can cause psychosis with hallucinations (hearing and seeing things that are not there) and delusions (false, bizarre beliefs). Amphetamine-induced psychosis symptoms are similar to paranoid schizophrenia, while cocaine-induced psychosis is typically associated with grandiosity and the hallucination of bugs crawling on the skin. The psychiatric symptoms are paramount, and memory loss is secondary. Narcotic Addiction Narcotics were originally ex