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Drug interactions

Levonorgestrel + Pexidartinib

Severity: Moderate

Levonorgestrel and Pexidartinib: 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

Pexidartinib carries a risk of serious hepatotoxicity, and hormonal agents can rarely contribute to liver injury. The combined hepatic risk is mostly theoretical for low-dose levonorgestrel.

What this interaction means in plain words

Levonorgestrel and Pexidartinib 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.

Levonorgestrel belongs to Endocrine; Pexidartinib belongs to Oncology.

Evidence level: Low

Why it happens

Potential additive hepatotoxicity; no specific pharmacokinetic mechanism is established.

What to do

Monitor liver enzymes per pexidartinib labeling and stop therapy if hepatotoxicity 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 Levonorgestrel with Pexidartinib?

MediHelp rates the interaction as moderate. Levonorgestrel and Pexidartinib 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. Pexidartinib carries a risk of serious hepatotoxicity, and hormonal agents can rarely contribute to liver injury. The combined hepatic risk is mostly theoretical for low-dose levonorgestrel.

How serious is the interaction between Levonorgestrel and Pexidartinib?

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 liver enzymes per pexidartinib labeling and stop therapy if hepatotoxicity develops.

What other medicines interact with Levonorgestrel?

MediHelp also lists interactions of Levonorgestrel with, for example, Amobarbital, Apalutamide, Belzutifan. The full list is on the Levonorgestrel page.

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

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