Hallucinations are sensations that appear to be real but are created within the mind. Examples include seeing things that are not there, hearing voices or other sounds, experiencing body sensations like crawling feelings on the skin, or smelling odors that are not there. Hallucinations can be a feature of psychotic disorders such as schizophrenia and are also very common in drug-induced states and in drug withdrawal. This occurs with a number of different drugs. People who are seriously ill, such as those with liver failure or kidney failure, can experience hallucinations. High fevers can also produce hallucinations in some people. Hallucinations can accompany other psychotic symptoms such as delusions and disconnection from reality. They can be temporary or persist over the long term, depending upon the exact type of hallucinations and their cause.
Other causes of hallucinations
- Brain Trauma
- Charles Bonnet Syndrome
- Delusional Disorder
- Drug-Induced Psychosis
- Liver Failure
- LSD Use
- Peduncular Hallucinosis
- Sleep Disturbances
- Temporal Lobe Epilepsy
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Causes of Hallucinations
Acanthamoeba is an amoeba that lives in dust, soil, and fresh, sea, and brackish water. Acanthamoeba keratitis causes eye pain, a sensation of something in the eye, and blurry vision. Acanthamoeba causes granulomatous encephalitis, leading to seizures, hallucinations, stiff neck, nausea, and vomiting. Diseeminated infection may also result from Acanthamoeba infection.
Alcoholism and Alcohol Abuse
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Alzheimer's disease is a common cause of dementia. Symptoms and warning signs of Alzheimer's disease include memory loss, difficulty performing familiar tasks, disorientation to time and place, misplacing things, and more. The biggest risk factor for Alzheimer's disease is increased age. Treatment for Alzheimer's is often targeted toward decreasing the symptoms and progression of the disease.
Autism: Early Signs and Symptoms
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Cocaine and Crack Addiction
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Fever in Adults and Children
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Human Immunodeficiency Virus (HIV)
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Kidney (Renal) Failure
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Examples of Medications for Hallucinations
- aripiprazole (Abilify, 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)
- quetiapine (Seroquel)
- risperidone, Risperdal; Risperdal Consta, Risperdal M-TAB
- Side Effects of Nuplazid (pimavanserin)
- thiothixene - oral, Navane
- ziprasidone (Geodon)
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