Opioid analgesics reduce use of antipsychotics in persons with Alzheimer’s disease

Initiating an opioid analgesic reduced the use of antipsychotics and benzodiazepines in persons with Alzheimer’s disease, a recent study from the University of Eastern Finland shows. These drugs are frequently prescribed to treat behavioural and psychiatric symptoms of dementia, which can be worsened by other symptoms, such as pain. The results were published in International Psychogeriatrics.

The researchers analysed the use of antipsychotics and benzodiazepines six months before and six months after persons with Alzheimer’s disease begun using an opioid. These results were then compared to persons with Alzheimer’s disease who did not initiate opioid use. After the initiation of an opioid, the researchers found a downward trend in the prevalence of both antipsychotics and benzodiazepines, with the prevalence of antipsychotics reducing more.

The use of antipsychotics and benzodiazepines is very frequent in persons with Alzheimer’s disease, but it carries a risk for severe adverse effects, and long-term treatment is generally not recommended. Previous studies have found a decrease in behavioural and psychiatric symptoms of dementia when patients are treated for pain, but this new study now shows, for the first time, a decrease in symptomatic drug use. The study is also the world’s first nationwide study on the subject. The results provide further evidence on the importance of proper diagnosis and treatment of pain among persons with dementia.

The study is part of the MEDALZ cohort, which included 3,327 persons with Alzheimer’s disease diagnosed during 2010–2011. Each person initiating opioid use was matched with a comparison person with Alzheimer’s disease who did not initiate opioid use but was of the same age, gender and region of residence. Data for the study were derived from Finnish nationwide registers. 

For more information, please contact:

Aleksi Hamina, MSc (Pharm), PhD student, School of Pharmacy, University of Eastern Finland, Kuopio, aleksi.hamina(at)uef.fi

Sirpa Hartikainen, professor, School of Pharmacy, University of Eastern Finland Kuopio, sirpa.hartikainen(at)uef.fi

Research article:

Impact of opioid initiation on antipsychotic and benzodiazepine and related drug use among persons with Alzheimer’s disease.

Aleksi Hamina, Piia Lavikainen, Antti Tanskanen, Anna-Maija Tolppanen, Jari Tiihonen, Sirpa Hartikainen, Heidi Taipale. International Psychogeriatrics. Published online 21 March 2018. https://doi.org/10.1017/S1041610217002897

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The University of Eastern Finland, UEF, is one of the largest universities in Finland. The activities of the UEF underscore multidisciplinarity, and the university is especially strong in research related to forests and the environment, health and well-being, and new technologies and materials. The UEF offers teaching in more than 100 major subjects. In addition to the high standard of teaching, the university offers its students a modern study environment, which is under constant development. The university comprises four faculties: the Philosophical Faculty, the Faculty of Science and Forestry, the Faculty of Health Sciences, and the Faculty of Social Sciences and Business Studies. The university’s campuses are located in the heart of beautiful eastern Finland in Joensuu, Kuopio and Savonlinna. The UEF is home to approximately 15 000 students and nearly 2 800 members of staff.

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