Substance-induced psychosis

Substance-induced psychosis
Classification and external resources
Specialty	psychiatry
ICD-10	F10.5-F19.5
ICD-9-CM	292.1
MeSH	D011605
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Substance-induced psychosis (commonly known as toxic psychosis) is a form of substance use disorder where psychosis can be attributed to substance use. It is a psychosis that results from the poisonous effects of chemicals or drugs, including those produced by the body itself. Various psychoactive substances have been implicated in causing or worsening psychosis in users.

Psychosis manifests as disorientation and visual (and/or haptic) hallucinations. It is a state in which a person's mental capacity to recognize reality, communicate, and relate to others is impaired, thus interfering with the capacity to deal with life demands. While there are many types of psychosis, substance-induced psychosis can be pinpointed to specific chemicals.

Psychotic states may occur after using a variety of legal and illegal substances. Usually such states are temporary and reversible, with fluoroquinolone-induced psychosis being a notable exception. Drugs whose use, abuse, or withdrawal are implicated in psychosis include the following:

The code F11.5 is reserved for opioid-induced psychosis, and F17.5 is reserved for tobacco-induced psychosis, but neither substance is traditionally associated with the induction of psychosis.

The code F15.5 also includes caffeine-induced psychosis, despite not being specifically listed in the DSM-IV. However, there is evidence that caffeine, in extreme acute doses or when severely abused for long periods of time, may induce psychosis.

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