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Drug interactions

Lenvatinib + Sotalol

Severity: Major

Lenvatinib and Sotalol: 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

Both drugs can prolong the QT interval, so combined use increases the risk of torsades de pointes. Sotalol carries a substantial intrinsic proarrhythmic risk that is dose and electrolyte dependent.

What this interaction means in plain words

Lenvatinib and Sotalol 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.

Lenvatinib belongs to Oncology; Sotalol belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive QT prolongation through delayed cardiac repolarization.

What to do

Obtain a baseline ECG and monitor ECG periodically during co-treatment. Correct potassium, magnesium and calcium abnormalities and consider an alternative to sotalol if QTc rises significantly.

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?

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 Lenvatinib with Sotalol?

MediHelp rates the interaction as major. Lenvatinib and Sotalol 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. Both drugs can prolong the QT interval, so combined use increases the risk of torsades de pointes. Sotalol carries a substantial intrinsic proarrhythmic risk that is dose and electrolyte dependent.

How serious is the interaction between Lenvatinib and Sotalol?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and monitor ECG periodically during co-treatment. Correct potassium, magnesium and calcium abnormalities and consider an alternative to sotalol if QTc rises significantly.

What other medicines interact with Sotalol?

MediHelp also lists interactions of Sotalol with, for example, Arsenic trioxide, Artemether / lumefantrine, Disopyramide. The full list is on the Sotalol page.

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