Several antipsychotic treatments given to patients with dementia have been linked to serious side effects including heart failure, a study published Thursday has found.
"Antipsychotic use in people with dementia is associated with ... a wide range of serious adverse outcomes including stroke, blood clots, heart attack, heart failure, fracture, pneumonia and acute kidney injury," according to the study published in the British Medical Journal (BMJ).
Scientists found that the highest risks occur when treatment begins, "underscoring need for increased caution in early stages of treatment."
The antipsychotics — risperidone, quetiapine, haloperidol and olanzapine — are usually prescribed to patients with psychotic disorders such as schizophrenia.
They are also used to treat depression that is particularly resistant to other medications, as well as to treat patients suffering from dementia, such as Alzheimer's disease.
Antipsychotics do not cure these illnesses but are intended to calm certain symptoms such as aggressive behaviour.
