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Drug interactions

Bleomycin + Olaparib

Severity: Moderate

Bleomycin and Olaparib: 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

Olaparib commonly causes cytopenias and bleomycin can add to marrow toxicity, although bleomycin is relatively marrow-sparing. Together they may prolong or worsen blood count suppression.

What this interaction means in plain words

Bleomycin and Olaparib 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.

Bleomycin belongs to Oncology; Olaparib belongs to Oncology.

Evidence level: Low

Why it happens

Additive hematologic toxicity from DNA-damaging and PARP-inhibiting effects.

What to do

Monitor complete blood counts regularly and modify olaparib or other doses for significant 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 Bleomycin with Olaparib?

MediHelp rates the interaction as moderate. Bleomycin and Olaparib 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. Olaparib commonly causes cytopenias and bleomycin can add to marrow toxicity, although bleomycin is relatively marrow-sparing. Together they may prolong or worsen blood count suppression.

How serious is the interaction between Bleomycin and Olaparib?

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 regularly and modify olaparib or other doses for significant cytopenias.

What other medicines interact with Bleomycin?

MediHelp also lists interactions of Bleomycin with, for example, Adenovirus types 4 and 7 live, Brentuximab, Brentuximab vedotin. The full list is on the Bleomycin page.

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