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Drug interactions

Paclitaxel + Vemurafenib

Severity: Moderate

Paclitaxel and Vemurafenib: 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

Vemurafenib inhibits P-glycoprotein and may increase paclitaxel exposure. Toxicity such as neutropenia or neuropathy could be greater.

What this interaction means in plain words

Paclitaxel and Vemurafenib 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; Vemurafenib belongs to Oncology.

Evidence level: Low

Why it happens

Inhibition of P-glycoprotein efflux of paclitaxel.

What to do

Monitor blood counts and neuropathy. Reduce the paclitaxel dose if toxicity develops.

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 Vemurafenib?

MediHelp rates the interaction as moderate. Paclitaxel and Vemurafenib 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. Vemurafenib inhibits P-glycoprotein and may increase paclitaxel exposure. Toxicity such as neutropenia or neuropathy could be greater.

How serious is the interaction between Paclitaxel and Vemurafenib?

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. Reduce the paclitaxel dose if toxicity develops.

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

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