Drug interactions
Levoketoconazole + Pazopanib
Severity: Major
Levoketoconazole and Pazopanib: major 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
Levoketoconazole is a strong CYP3A4 inhibitor that can substantially raise pazopanib levels. It also prolongs QT, adding cardiac risk, and both drugs can cause hepatotoxicity.
What this interaction means in plain words
Levoketoconazole and Pazopanib can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Levoketoconazole belongs to Endocrine; Pazopanib belongs to Oncology.
Why it happens
Strong CYP3A4 inhibition reducing pazopanib clearance, with additive QT and liver effects.
What to do
Avoid if possible. If coadministered, reduce pazopanib to 400 mg daily and monitor ECG and liver tests closely.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Pazopanib
- Adagrasib + Pazopanib Major
- Amiodarone + Pazopanib Major
- Amisulpride + Pazopanib Major
- Amobarbital + Pazopanib Major
- Anagrelide + Pazopanib Major
- Apalutamide + Pazopanib Major
Other interactions of Levoketoconazole
- Alfuzosin + Levoketoconazole Contraindicated
- Alprazolam + Levoketoconazole Contraindicated
- Amiodarone + Levoketoconazole Contraindicated
- Avanafil + Levoketoconazole Contraindicated
- Cisapride + Levoketoconazole Contraindicated
- Clarithromycin + Levoketoconazole Contraindicated
Frequently asked questions
Can I take Levoketoconazole with Pazopanib?
MediHelp rates the interaction as major. Levoketoconazole and Pazopanib can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Levoketoconazole is a strong CYP3A4 inhibitor that can substantially raise pazopanib levels. It also prolongs QT, adding cardiac risk, and both drugs can cause hepatotoxicity.
How serious is the interaction between Levoketoconazole and Pazopanib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible. If coadministered, reduce pazopanib to 400 mg daily and monitor ECG and liver tests closely.
What other medicines interact with Pazopanib?
MediHelp also lists interactions of Pazopanib with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Pazopanib page.
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