Abstract
A case study is described in which four patients diagnosed at different stages of disease progression with the α‐synuclein or Lewy body disorders Parkinson’s disease (PD) and Neurocognitive Disorder with Lewy Bodies (NCDLB) were treated with the acetylcholinesterase inhibitor (AChEI) Donepezil to address the symptoms of constipation, obstipation and impaction. In all four patients, the use of Donepezil was associated with significant symptom reduction, which was maintained at intervals of six, twelve, eighteen and thirty-six months, with no apparent reduction in bowel motility, nor the emergence of any new symptoms. The results suggest that the AChEI Donepezil can have long-term benefit in reducing the symptoms of constipation, obstipation and impaction in patients with α‐synuclein disorders. Keywords: Neurocognitive Disorder with Lewy Bodies, Parkinson’s disease, constipation, Donepezil, acetylcholinesterase inhibitor
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