Palliative medicine
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Delirium in advanced cancer is often poorly identified and inappropriately managed. It is one of the most common causes for admission to clinical institutions and is the most frequently cited psychiatric disorder in terminal cancer. Diagnosis of delirium is defined as a disturbance of consciousness and attention with a change in cognition and/or perception. ⋯ Some therapeutic strategies have been shown to be effective: reduction or withdrawal of the psychoactive medication, opioid rotation, and hydration. Haloperidol is the most frequently used drug, and new neuroleptics such as risperidone or olanzapine are being tested with good results. Methylphenidate has been used for hypoactive delirium.
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Haloperidol is one of 20 'essential' medications in palliative care. Its use is widespread in palliative care patients. The pharmacology of haloperidol is complex and the extent and severity of some of its adverse effects, particularly extrapyramidal adverse effects (EPS), may be related to the route of administration. ⋯ Sedation is not a common adverse effect of haloperidol. It is important that palliative care practitioners have a comprehensive understanding of the indications, doses, adverse effects and pharmacology of haloperidol. This review is intended to address these issues.