Providing medication to sedate people with dementia can have a negative impact on the patient's health.
This is according to Penny Hibbert, director of the Dementia Service Development Centre South East.
Ms Hibbert said: "Often what happens is people want to help, they think if they give somebody medication to sedate them that will be helpful," said Ms Hibbert.
She added: "Actually, it is really unhelpful and people with dementia can deteriorate really quickly and become very unwell with that sort of medication."
The mental health expert explained that friends and family were sometimes tempted to provide the medication in order to tackle the often "challenging behaviour" displayed by patients.
However, she suggested that documents providing advice to guide carers through the illness would be more beneficial.
Ms Hibbert's comments follow a recent report published in the BMJ Clinical Evidence journal which claimed that tackling obesity and high cholesterol in middle age can cut the changes of developing dementia by about 20 per cent.