Desvenlafaxine; Venlafaxine/Selected Tricyclic Compounds Interactions
This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.
Medical warning:
Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
When these two medicines are taken together, your body may not process your tricyclic antidepressant properly.
What might happen:
The blood levels of your tricyclic antidepressant may increase and cause toxic effects.
What you should do about this interaction:
If you experience blurred vision, dry mouth, urinary retention, mental or mood changes, increase drowsiness, confusion, or seizures, contact your healthcare professionals (e.g. doctor or pharmacist). Your doctor may want to adjust the dose of your medicine.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
- 1.Preskorn SH, Beber JH, Faul JC, Hirschfeld RM. Serious adverse effects of combining fluoxetine and tricyclic antidepressants. Am J Psychiatry 1990 Apr;147(4):532.
- 2.Bergstrom RF, Peyton AL, Lemberger L. Quantification and mechanism of the fluoxetine and tricyclic antidepressant interaction. Clin Pharmacol Ther 1992 Mar;51(3):239-48.
- 3.Skjelbo E, Brosen K. Inhibitors of imipramine metabolism by human liver microsomes. Br J Clin Pharmacol 1992 Sep;34(3):256-61.
- 4.Pristiq (desvenlafaxine succinate) US prescribing information. Wyeth Pharmaceuticals, Inc. August, 2023.
- 5.American Geriatrics Society 2023 updated AGS Beers Criteria for potentially inappropriate medication use in older adults. J Am Geriatr Soc 2023 Jul;71(7):2052-2081.
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.