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Drug interactions

Cytarabine + Ublituximab

Severity: Moderate

Cytarabine and Ublituximab: 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

Ublituximab depletes B cells and cytarabine causes marked myelosuppression, so combined use may increase infection risk. The effect is additive.

What this interaction means in plain words

Cytarabine and Ublituximab 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.

Cytarabine belongs to Oncology; Ublituximab belongs to Miscellaneous.

Evidence level: Low

Why it happens

Additive immunosuppression from B-cell depletion and cytotoxic bone marrow suppression.

What to do

Monitor for infection and follow blood counts closely. Consider the prolonged B-cell depletion when planning chemotherapy.

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 Cytarabine with Ublituximab?

MediHelp rates the interaction as moderate. Cytarabine and Ublituximab 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. Ublituximab depletes B cells and cytarabine causes marked myelosuppression, so combined use may increase infection risk. The effect is additive.

How serious is the interaction between Cytarabine and Ublituximab?

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 infection and follow blood counts closely. Consider the prolonged B-cell depletion when planning chemotherapy.

What other medicines interact with Cytarabine?

MediHelp also lists interactions of Cytarabine with, for example, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel, Belatacept. The full list is on the Cytarabine page.

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