[Clozapine for behavioural and psychological symptoms of dementia]

Behavioural and psychological symptoms of dementia (BPSD) are common and contribute significantly to caregiver burden and institutionalization of the patient. Unfortunately, current guideline-based interventions are sometimes ineffective and BPSD can become extreme.

A 75-year-old man with dementia was admitted to a psychogeriatric unit because of very severe BPSD in a nursing home. Different kinds of pharmaceutical and psychological interventions had been tried but turned out to be ineffective. Therefore, we started with low dose clozapine which improved his behavior. We reduced the dose twice, whereupon the behavior deteriorated. By reintroducing the proper dose, his behavior became better again.

Our case is in accordance with the available literature on Clozapine for BPSD: Six uncontrolled studies have shown a positive effect of clozapine for BPSD, even if other interventions failed. We conclude that clozapine may be tried in cases of serious refractory BPSD when guideline-based interventions are ineffective.