A delusion is a false personal belief that is not subject to reason or contradictory evidence and is not explained by a person's usual cultural and religious concepts (so that, for example, it is not an article of faith). A delusion may be firmly maintained in the face of incontrovertible evidence that it is false. Delusions are common in psychotic disorders such as schizophrenia. Delusions can also be a feature of brain damage or disorders. Delusions can be accompanied by other psychiatric symptoms or by physical symptoms when these occur related to a medical condition. Delusional disorder is a specific psychiatric condition that was formerly known as paranoid disorder. Examples of delusions include the sufferer believing that one has an unusual power or talent, believing that someone else (possibly a prominent figure or famous person) is in love with them, believing that one is being persecuted, or believing that one has a nonexistent medical problem.
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.
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Other Causes of Delusions
- Brain Trauma
- Delusional Disorder
- Drug-Induced Psychosis
Examples of Medications for Delusions
- aripiprazole (Abilify, Abilify Maintena, Aristrada)
- chlorpromazine - oral, Thorazine
- chlorpromazine-injection, Thorazine
- clozapine (Clozaril, Fazacio ODT, Versacloz)
- fluphenazine (Permitil, Prolixin)
- fluphenazine concentrate - oral, Prolixin
- fluphenazine liquid - oral, Prolixin
- haloperidol (Haldol)
- olanzapine, Zyprexa, Zydis, Zyprexa Relprevv
- quetiapine (Seroquel, Seroquel XR)
- risperidone, Risperdal; Risperdal Consta, Risperdal M-TAB
- thiothixene - oral, Navane
- ziprasidone (Geodon)
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