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Using tricyclic antidepressants in the elderly
1Department of Psychiatry, Beth Israel Medical Center, New York, New York.
Clinics in Geriatric Medicine
|May 1, 1992
Summary
Nortriptyline is the recommended tricyclic antidepressant for elderly patients with major depression due to its proven efficacy and favorable side effect profile. It offers a safer alternative compared to other tricyclics, particularly for those with cardiac conditions.
Area of Science:
- Geriatric Psychiatry
- Pharmacology
- Clinical Therapeutics
Background:
- Limited systematic study of tricyclic antidepressants (TCAs) in the elderly population.
- Tertiary amine TCAs (e.g., amitriptyline, imipramine) show efficacy but carry significant side effect risks in older adults.
- Desipramine has a better side effect profile but limited efficacy data in geriatric depression.
Purpose of the Study:
- To evaluate the efficacy and safety of nortriptyline as a first-line antidepressant in elderly patients with major depression.
- To compare nortriptyline's side effect profile with other TCAs in the geriatric population.
- To assess nortriptyline's suitability for acute, continuation, and maintenance treatment of depression in older adults.
Main Methods:
- Systematic review of existing studies on nortriptyline in elderly patients.
- Analysis of nortriptyline's efficacy in acute and continuation phases of depression treatment.
- Evaluation of nortriptyline's side effect profile, including anticholinergic, cardiac, and orthostatic hypotension effects.
- Consideration of established therapeutic plasma level ranges for nortriptyline.
Main Results:
- Nortriptyline is the most studied TCA in the elderly and shows efficacy in acute and continuation treatment.
- It possesses a favorable side effect profile with low anticholinergic activity, minimal cardiac risks, and less orthostatic hypotension.
- Mixed results exist for maintenance treatment, but it remains a viable option due to lack of comparative alternatives.
- An established therapeutic range for plasma levels aids in precise dosing.
Conclusions:
- Nortriptyline is recommended as the tricyclic antidepressant of first choice for elderly patients with major depression.
- Its established efficacy, favorable safety profile, and manageable side effects make it suitable for geriatric use.
- Further research into its 10-hydroxy metabolite could enhance its precise and safe application in this population.