Dopaminergic and Serotonergic Drug Use: A Nationwide Register-Based Study of Over 1 300 000 Older People
2011

Use of Dopaminergic and Serotonergic Drugs in Older People

Sample size: 1347564 publication Evidence: high

Author Information

Author(s): Johnell Kristina, Fischer Håkan

Primary Institution: Aging Research Center, Karolinska Institutet and Stockholm University

Hypothesis

To investigate the use of dopaminergic and serotonergic drugs in elderly people.

Conclusion

Approximately one out of ten older patients uses serotonergic drugs and one out of twenty dopaminergic drugs.

Supporting Evidence

  • Dopaminergic drugs were used by 5.6% of participants.
  • Serotonergic drugs were used by 13.2% of participants.
  • Use of serotonergic drugs increased with age, with 23.0% of people aged ≥90 years using these drugs.
  • Female gender was associated with higher use of both dopaminergic and serotonergic drugs.

Takeaway

Many older people take medications that affect their brain chemicals, which can be a problem as they age.

Methodology

Data from the Swedish Prescribed Drug Register was analyzed for individuals aged ≥65 years.

Potential Biases

Potential underestimation of drug use due to reliance on prescription data.

Limitations

The study may not include all drug use as it does not account for over-the-counter drugs or drugs used in hospitals.

Participant Demographics

Participants were individuals aged ≥65 years, with 58% being women.

Digital Object Identifier (DOI)

10.1371/journal.pone.0023750

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication