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Drug interactions

Berotralstat + Verapamil

Severity: Moderate

Berotralstat and Verapamil: 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

Verapamil is a P-gp substrate and inhibitor, and berotralstat is a P-gp inhibitor and substrate, so each may increase the other's concentrations. Berotralstat also prolongs QT at higher doses, so increased exposure may matter.

What this interaction means in plain words

Berotralstat and Verapamil 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.

Berotralstat belongs to Miscellaneous; Verapamil belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Bidirectional P-glycoprotein inhibition (and berotralstat CYP3A4 inhibition) raises exposure of both drugs.

What to do

Monitor heart rate, blood pressure and ECG; consider reducing doses of either drug if bradycardia, hypotension or QT prolongation 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 Berotralstat with Verapamil?

MediHelp rates the interaction as moderate. Berotralstat and Verapamil 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. Verapamil is a P-gp substrate and inhibitor, and berotralstat is a P-gp inhibitor and substrate, so each may increase the other's concentrations. Berotralstat also prolongs QT at higher doses, so increased exposure may matter.

How serious is the interaction between Berotralstat and Verapamil?

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 heart rate, blood pressure and ECG; consider reducing doses of either drug if bradycardia, hypotension or QT prolongation develops.

What other medicines interact with Verapamil?

MediHelp also lists interactions of Verapamil with, for example, Dofetilide, Flibanserin, Lomitapide. The full list is on the Verapamil 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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