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Drug interactions

Olaparib + Oxaliplatin

Severity: Moderate

Olaparib and Oxaliplatin: 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 combined with DNA-damaging chemotherapy such as platinum agents can potentiate and prolong myelosuppression. Neutropenia, thrombocytopenia and anemia may be more severe than with either drug alone.

What this interaction means in plain words

Olaparib and Oxaliplatin 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 belongs to Oncology; Oxaliplatin belongs to Oncology.

Evidence level: Moderate

Why it happens

PARP inhibition impairs DNA repair, enhancing the marrow toxicity of platinum-induced DNA damage.

What to do

Monitor blood counts closely and adjust doses or delay treatment for cytopenias. Dose reduction of olaparib is often needed when combined with 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 Olaparib with Oxaliplatin?

MediHelp rates the interaction as moderate. Olaparib and Oxaliplatin 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 combined with DNA-damaging chemotherapy such as platinum agents can potentiate and prolong myelosuppression. Neutropenia, thrombocytopenia and anemia may be more severe than with either drug alone.

How serious is the interaction between Olaparib and Oxaliplatin?

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 blood counts closely and adjust doses or delay treatment for cytopenias. Dose reduction of olaparib is often needed when combined with chemotherapy.

What other medicines interact with Oxaliplatin?

MediHelp also lists interactions of Oxaliplatin with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Oxaliplatin page.

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