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Drug interactions

Anagrelide + Tacrolimus

Severity: Major

Anagrelide and Tacrolimus: major interaction.

Last updated

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

Both agents can prolong the QT interval, and combined use may increase the risk of ventricular arrhythmia including torsades de pointes.

What this interaction means in plain words

Anagrelide and Tacrolimus 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; Tacrolimus belongs to Miscellaneous.

Evidence level: Moderate

Why it happens

Additive QT prolongation.

What to do

Avoid if an alternative is available. Otherwise obtain baseline and follow-up ECGs and keep potassium and magnesium within normal range.

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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Frequently asked questions

Can I take Anagrelide with Tacrolimus?

MediHelp rates the interaction as major. Anagrelide and Tacrolimus 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. Both agents can prolong the QT interval, and combined use may increase the risk of ventricular arrhythmia including torsades de pointes.

How serious is the interaction between Anagrelide and Tacrolimus?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if an alternative is available. Otherwise obtain baseline and follow-up ECGs and keep potassium and magnesium within normal range.

What other medicines interact with Tacrolimus?

MediHelp also lists interactions of Tacrolimus with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Cidofovir. The full list is on the Tacrolimus page.

Full monographs, dosing and an interaction checker in the MediHelp app

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