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Hyperkinesia

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hyperkinesia [¦hī·pər·kə′nē·zhə]
(medicine)
Excessive and usually uncontrollable muscle movement.
Hyperkinesia 

excessive, violent, involuntary movements that occur in cases of organic and functional disturbances of the nervous system. Hyperkinesia usually accompanies disturbances of the cerebral cortex, subcortical motor centers, or truncal part of the brain. Types of hyperkinesia include athetosis, chorea, Parkinson’s disease, and myoclonia (brief jerking of a muscle or muscle bundle with a lightning-fast pace of contraction).
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Participants receiving risperidone experienced extrapyramidal symptoms--dystonia, hyperkinesia, tremor, or abnormal gait--to a greater degree than did placebo patients.
Risperidone and acute mania by Leard-Hansson, Jan; Guttmacher, Laurence / Clinical Psychiatry News
10) They cited several clinical features that are highly suggestive of a malignant etiology: (1) single-branch palsy, (2) slow progression beyond 3 weeks, (3) no return of function at 6 months, (4) facial hyperkinesia, especially hemifacial spasm, (5) associated cranial neuropathies, (6) recurrent ipsilateral paralysis, and (7) pain; some of these features were seen in our case.
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Most commonly observed side effects included agitation, hyperkinesia, depression, dysmenorrhea, flatulence and rash.
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