Scientists are calling for a reduction in medication for dementia patients.

Research by the University of Southampton has revealed that many long-standing medicines prescribed to dementia sufferers could be safely removed, potentially leading to improved health outcomes.

The study reviewed 32 previous investigations into the effects of medicine optimisation and "deprescribing" for older individuals with dementia or mild cognitive impairment.

The findings suggest that it is possible to reduce the number of medications taken by dementia patients without increasing the risks of hospitalisation or death.

Dr Kinda Ibrahim, an academic pharmacist and associate professor in primary care at the University of Southampton, led the research.

Dr Ibrahim said: "Many older people with dementia are prescribed a multitude of medications.

"We know there is a link between taking many medications and poor outcomes, especially for people with dementia."

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She highlighted the potential issues faced by dementia patients, who may forget to take their medications or find their lifestyle affected by the need to take multiple medications at specific times.

She added: "A list of multiple medications adds burden to the carer."

The research suggests that regular medicine reviews with a pharmacist or GP could help analyse the risks against the benefits for each medication, with the aim of deprescribing where appropriate.

Dr Ibrahim said: "We know that deprescribing is challenging, but there is evidence that it can be safe and feasible and lead to health benefits.

"Deprescribing in people with dementia should take into consideration their capacity, cognitive abilities, interference of medications on their quality of life, and should involve carers."

The study emphasised the need for further research, as most of the 32 studies analysed focused on people with dementia living in care homes, leaving out those who still live at home.