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Drug interactions

Anagrelide + Olanzapine

Severity: Moderate

Anagrelide and Olanzapine: 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

Anagrelide can prolong the QT interval and cause tachycardia and palpitations, and olanzapine has a small QT effect. The combination may add to arrhythmia risk.

What this interaction means in plain words

Anagrelide and Olanzapine 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.

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

Evidence level: Low

Why it happens

Additive QT prolongation; olanzapine's effect is modest.

What to do

Obtain baseline ECG and correct potassium and magnesium before combining. Repeat ECG after initiation and with dose changes.

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 Anagrelide with Olanzapine?

MediHelp rates the interaction as moderate. Anagrelide and Olanzapine 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. Anagrelide can prolong the QT interval and cause tachycardia and palpitations, and olanzapine has a small QT effect. The combination may add to arrhythmia risk.

How serious is the interaction between Anagrelide and Olanzapine?

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 baseline ECG and correct potassium and magnesium before combining. Repeat ECG after initiation and with dose changes.

What other medicines interact with Olanzapine?

MediHelp also lists interactions of Olanzapine with, for example, Amisulpride, Amoxapine, Apomorphine. The full list is on the Olanzapine page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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