Difficulty or distortion in voluntary movement

University of Rochester

While the discovery of antipsychotic drugs helped with the treatment of schizophrenia, there were quite significant side effects.

- Dyskinesia
- Tardive Dyskinesia
- Supersensitivity psychosis
- Involuntary movements of the arms, legs, tongue and facial muscles, resulting in Parkinson’s-like tremors

Long-Term Effects of Antipsychotic Drugs

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

Behavioral Neuroscience 8th Edition

Dyskinesia

A disorder characterized by involuntary movements, especially involving the face, mouth, lips, and tongue. Can be caused by prolonged use of antipsychotic drugs, like chloropromazine

Tardive Dyskinesia

An exaggerated psychosis that emerges when there is a decrease in antipsychotic medication dosage that can be due to a consequence of up regulation of receptors that occured during drug treatment.

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