A lack of facial expressions can occur in various conditions. Catatonia is a term that is used to describe a state of stupor or unresponsiveness in a person who is otherwise awake. Lack of facial expressions is one sign of catatonia, which can occur in association with a psychiatric disorder, like schizophrenia. Diseases that cause damage to the brain and its function can also lead to a lack of responsiveness, including a lack of facial expressions. Examples include brain trauma and encephalitis.
Other causes of lack of facial expressions
- Brain Trauma
- Facial Paralysis
- Neuroleptic Malignant Syndrome
- Nonconvulsive Status Epilepticus
- Vegetative State
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.
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Causes of Lack of Facial Expressions
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Examples of Medications for Lack of Facial Expressions
- aripiprazole (Abilify, Aristrada)
- asenapine (Saphris)
- chlorpromazine - oral, Thorazine
- chlorpromazine-injection, Thorazine
- clozapine (Clozaril, Fazacio ODT, Versacloz)
- fluphenazine (Permitil, Prolixin)
- fluphenazine concentrate - oral, Prolixin
- fluphenazine liquid - oral, Prolixin
- haloperidol (Haldol)
- lurasidone hydrochloride (Latuda)
- olanzapine (Zyprexa, Zydis)
- paliperidone (Invega)
- quetiapine (Seroquel)
- risperidone, Risperdal; Risperdal Consta, Risperdal M-TAB
- thiothixene - oral, Navane
- ziprasidone (Geodon)
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