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Drug interactions

Paclitaxel + Ponatinib

Severity: Moderate

Paclitaxel and Ponatinib: 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

Ponatinib inhibits P-glycoprotein and may increase paclitaxel exposure. Both drugs can cause myelosuppression and neuropathy, so toxicity may be compounded.

What this interaction means in plain words

Paclitaxel and Ponatinib 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.

Paclitaxel belongs to Oncology; Ponatinib belongs to Oncology.

Evidence level: Low

Why it happens

P-glycoprotein inhibition by ponatinib reduces paclitaxel efflux; additive toxicity possible.

What to do

Monitor blood counts and neuropathy and reduce the paclitaxel dose if toxicity occurs.

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 Paclitaxel with Ponatinib?

MediHelp rates the interaction as moderate. Paclitaxel and Ponatinib 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. Ponatinib inhibits P-glycoprotein and may increase paclitaxel exposure. Both drugs can cause myelosuppression and neuropathy, so toxicity may be compounded.

How serious is the interaction between Paclitaxel and Ponatinib?

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 and neuropathy and reduce the paclitaxel dose if toxicity occurs.

What other medicines interact with Paclitaxel?

MediHelp also lists interactions of Paclitaxel with, for example, Adenovirus types 4 and 7 live, Cobicistat, Cyclosporine. The full list is on the Paclitaxel page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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