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Extrapyramidal symptoms are a reason why subjects drop out of clinical trials of antipsychotics; of the 213 (14.6%) subjects that dropped out of one of the largest clinical trials of antipsychotics (the CATIE trial [Clinical Antipsychotic Trials for Intervention Effectiveness], which included 1460 randomized subjects), 58 (27.2%) of those ...
Antipsychotic drugs can sometimes camouflage the signs of tardive dyskinesia from occurring in the early stages; this can happen from the individual having an increased dose of an antipsychotic drug. Often the symptoms of tardive dyskinesia are not apparent until the individual comes off of the antipsychotic drugs; however, when tardive ...
There has been a study that suggests antipsychotics are associated with possible cortical reconfiguration and gray matter loss, [21] but correlational data also suggests patients who consume antipsychotics, like people with schizophrenia, tend to engage in unhealthy habits like smoking which may exacerbate gray matter loss.
An assessment for an underlying cause of behavior is needed before prescribing antipsychotic medication for symptoms of dementia. [60] Antipsychotics in old age dementia showed a modest benefit compared to placebo in managing aggression or psychosis, but this is combined with a fairly large increase in serious adverse events.
Chlorpromazine, an antipsychotic and antiemetic drug which is classed as a "major" tranquilizer, may cause paradoxical effects such as agitation, hallucinations, excitement, insomnia, bizarre dreams, aggravation of psychotic symptoms and toxic confusional states. [8] These may be more common in elderly dementia patients.
Initial symptoms include restlessness, agitation, malaise, or a fixed stare. Then comes the more characteristically described extreme and sustained upward deviation of the eyes. In addition, the eyes may converge, deviate upward and laterally, or deviate downward.
Extrapyramidal symptoms (EPS) (dose-dependent). Tends to produce less extrapyramidal side effects than typical antipsychotics but more extrapyramidal side effects than sertindole, clozapine and quetiapine. [9] [10] Mild and transient constipation and xerostomia (dry mouth) [citation needed] Dizziness [citation needed]
The typical antipsychotics remain attached to the D2 receptors and accumulate in the brain tissue which may lead to TD. [64] Both typical and atypical antipsychotics can cause tardive dyskinesia. [65] According to one study, rates are lower with the atypicals at 3.9% per year as opposed to the typicals at 5.5% per year. [65]