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Drug interactions

Anagrelide + Trazodone

Severity: Major

Anagrelide and Trazodone: major interaction.

Last updated Sources: US FDA label

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Anagrelide can cause QT prolongation, tachycardia and palpitations, and trazodone may add to the QT effect. The combination raises the risk of ventricular arrhythmia, especially in patients with cardiac disease.

What this interaction means in plain words

Anagrelide and Trazodone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Anagrelide belongs to Cardiovascular; Trazodone belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive pharmacodynamic QT prolongation.

What to do

Perform a cardiovascular evaluation and baseline ECG before combining them, and correct electrolyte abnormalities. Monitor the QTc during therapy or choose an alternative antidepressant.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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References

Frequently asked questions

Can I take Anagrelide with Trazodone?

MediHelp rates the interaction as major. Anagrelide and Trazodone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Anagrelide can cause QT prolongation, tachycardia and palpitations, and trazodone may add to the QT effect. The combination raises the risk of ventricular arrhythmia, especially in patients with cardiac disease.

How serious is the interaction between Anagrelide and Trazodone?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Perform a cardiovascular evaluation and baseline ECG before combining them, and correct electrolyte abnormalities. Monitor the QTc during therapy or choose an alternative antidepressant.

What other medicines interact with Trazodone?

MediHelp also lists interactions of Trazodone with, for example, Arsenic trioxide, Ibutilide, Isocarboxazid. The full list is on the Trazodone page.

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