Substance/Medication-Induced Psychotic Disorder

Substance/Medication-Induced Psychotic Disorder is a specific type of psychotic disorder identified in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). This condition is characterised by psychotic symptoms (such as hallucinations or delusions) that are judged to be a direct physiological consequence of a substance, be it drug use, a medication, or toxin exposure. Here is an outline of Substance/Medication-Induced Psychotic Disorder:

1. Presentation of Symptoms: The primary feature is the presence of hallucinations and/or delusions. These symptoms are prominently psychotic and not better explained by a pre-existing psychotic disorder that is not substance-induced.
2. Substance Link: There must be evidence from the history, physical examination, or laboratory findings that the symptoms developed during or soon after substance intoxication or withdrawal, or after exposure to a medication.
3. Types of Substances: The substances can include alcohol, cannabis, phencyclidine, hallucinogens, inhalants, opioids, sedatives, hypnotics, anxiolytics, amphetamine (or other stimulants), and cocaine. Prescription medications, such as steroids and anticholinergics, can also induce psychotic symptoms.
4. Exclusion of Other Disorders: The disturbance is not better accounted for by a psychotic disorder that is not substance-induced. Such differentiation is determined based on the history, laboratory findings, or physical examination.
5. Severity of the Disorder: The severity of the disorder can vary and is often linked to the type of substance used, the amount and duration of use, and individual susceptibility.
6. Duration: For a diagnosis, symptoms should be present for a substantial portion of the time during a 1-month period, or less if successfully treated.
7. Reversibility: Once the effects of the substance wear off, the psychotic symptoms will usually diminish and often disappear. However, in some cases, especially after prolonged use of the substance, the symptoms might persist for a longer duration.
8. Functional Impairment: This disorder typically causes clinically significant distress or impairment in social, occupational, or other important areas of functioning.

This outline is a simplification for general understanding and should not be used for self-diagnosis or to diagnose others.