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Persistent Aggression in Dementia

Persistent aggression in dementia refers to repeated episodes of hitting, shouting, or threatening behaviour that go beyond occasional agitation.

Risnia

Risperidone

2mg

Developed to mitigate psychiatric symptoms and to support stabilisation of mood in psychotic disorders.

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Key takeaways

  • Pain, unfamiliar environments, disrupted sleep, and unmet needs can all trigger outbursts that the person cannot explain verbally.
  • A sudden change should trigger checks for pain, infection, constipation, urinary retention, delirium and medicine effects.
  • Calm communication and changes to the environment come before sedating medicine whenever immediate safety allows.

The listings below do not establish why aggression is occurring; antipsychotic treatment has important stroke, sedation and mortality risks in dementia.

Why aggression develops in dementia

The behaviour may reflect pain, fear, overstimulation, disrupted sleep, infection or another unmet need rather than intent. A sudden change calls for assessment of physical causes, environment and recent medicine changes before sedating treatment is considered.

When might medicine be considered?

Medicine may be considered when severe distress or risk of harm persists after reversible causes and practical measures have been addressed. Any antipsychotic trial should have a clear target, the lowest suitable exposure, close monitoring and regular review for reduction or withdrawal. Sedation can increase falls and does not by itself treat the cause of behaviour.

When to seek urgent care

Get urgent help if anyone is in immediate danger or the person cannot be safely supported. A sudden behavioural change with fever, pain, reduced alertness, new weakness, urinary symptoms or a recent medicine change needs prompt medical assessment for delirium or illness.