Hallucinations in the Substance-Induced Psychosis

Substance-induced psychotic disorder is any psychotic episode that is related to the abuse of an intoxicant. Prominent psychotic symptoms are hallucinations and/or delusions. This can be the result of substance use, abuse, intoxication, or withdrawal. The speed of onset and the type of psychotic symptoms vary depending on the type of substance. Regarding symptomatology, auditory hallucinations (specifically, hearing voices), visual hallucinations, and tactile hallucinations are most common in an alcohol-induced psychotic disorder, whereas persecutory delusions and tactile hallucinations (especially formication) are commonly seen in a cocaine- or amphetamine-induced psychotic disorder.