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Drug interactions

Dronedarone + Histrelin

Severity: Moderate

Dronedarone and Histrelin: moderate 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

Histrelin, a GnRH agonist, may prolong the QT interval during androgen deprivation. Combined with dronedarone, this may add to arrhythmia risk.

What this interaction means in plain words

Dronedarone and Histrelin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Dronedarone belongs to Cardiovascular; Histrelin belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Androgen deprivation may prolong cardiac repolarization, adding to dronedarone's effect.

What to do

Obtain a baseline ECG and monitor ECG and electrolytes during therapy. Consider an alternative if QTc is prolonged.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Dronedarone with Histrelin?

MediHelp rates the interaction as moderate. Dronedarone and Histrelin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Histrelin, a GnRH agonist, may prolong the QT interval during androgen deprivation. Combined with dronedarone, this may add to arrhythmia risk.

How serious is the interaction between Dronedarone and Histrelin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and monitor ECG and electrolytes during therapy. Consider an alternative if QTc is prolonged.

What other medicines interact with Dronedarone?

MediHelp also lists interactions of Dronedarone with, for example, Adagrasib, Amiodarone, Arsenic trioxide. The full list is on the Dronedarone page.

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

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