Types of dementia

What is Parkinson's disease dementia?

Parkinson's disease dementia is dementia that develops in someone who has had Parkinson's disease, usually years after the movement symptoms began.

It shares its underlying biology with Lewy body dementia; the practical distinction is timing, with movement problems appearing well before thinking problems.

Roughly a third to a half of people with Parkinson's develop it, more commonly in those diagnosed later in life.

Why it matters

The same caution about antipsychotic medication applies as in Lewy body dementia.

Sources

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Parkinson's disease dementia where you live

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Related terms

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