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Drug interactions

Hydroxyurea + Lenalidomide

Severity: Moderate

Hydroxyurea and Lenalidomide: 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

Both drugs cause myelosuppression, so combined use can deepen neutropenia, thrombocytopenia and anemia. This raises the risk of infection and bleeding.

What this interaction means in plain words

Hydroxyurea and Lenalidomide 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.

Hydroxyurea belongs to Miscellaneous; Lenalidomide belongs to Oncology.

Evidence level: Moderate

Why it happens

Additive bone marrow suppression through different mechanisms.

What to do

Monitor complete blood counts frequently, particularly in the first weeks. Reduce or interrupt doses according to lenalidomide labeling for cytopenias.

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 Hydroxyurea with Lenalidomide?

MediHelp rates the interaction as moderate. Hydroxyurea and Lenalidomide 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. Both drugs cause myelosuppression, so combined use can deepen neutropenia, thrombocytopenia and anemia. This raises the risk of infection and bleeding.

How serious is the interaction between Hydroxyurea and Lenalidomide?

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 complete blood counts frequently, particularly in the first weeks. Reduce or interrupt doses according to lenalidomide labeling for cytopenias.

What other medicines interact with Lenalidomide?

MediHelp also lists interactions of Lenalidomide with, for example, Deferiprone, Ropeginterferon alfa 2b, Acalabrutinib. The full list is on the Lenalidomide page.

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

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