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Drug interactions

Acetylsalicylic acid + Anagrelide

Severity: Moderate

Acetylsalicylic acid and Anagrelide: 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 inhibits platelet aggregation, and with aspirin the bleeding risk is increased, particularly gastrointestinal bleeding. The combination is sometimes used in essential thrombocythemia but requires care.

What this interaction means in plain words

Acetylsalicylic acid and Anagrelide 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.

Acetylsalicylic acid belongs to Musculoskeletal; Anagrelide belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive antiplatelet effects through different pathways (PDE3 inhibition and COX-1 inhibition).

What to do

Monitor for bleeding and platelet counts. Consider gastroprotection in patients at GI risk.

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 Acetylsalicylic acid with Anagrelide?

MediHelp rates the interaction as moderate. Acetylsalicylic acid and Anagrelide 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 inhibits platelet aggregation, and with aspirin the bleeding risk is increased, particularly gastrointestinal bleeding. The combination is sometimes used in essential thrombocythemia but requires care.

How serious is the interaction between Acetylsalicylic acid and Anagrelide?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for bleeding and platelet counts. Consider gastroprotection in patients at GI risk.

What other medicines interact with Acetylsalicylic acid?

MediHelp also lists interactions of Acetylsalicylic acid with, for example, Ketorolac, Ketorolac intranasal, Abciximab. The full list is on the Acetylsalicylic acid page.

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