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Drug interactions

Ranolazine + Vorinostat

Severity: Moderate

Ranolazine and Vorinostat: 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

Vorinostat has been associated with QT prolongation, and ranolazine also prolongs the QT interval. Combined use may increase the risk of ventricular arrhythmias.

What this interaction means in plain words

Ranolazine and Vorinostat 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.

Ranolazine belongs to Cardiovascular; Vorinostat belongs to Oncology.

Evidence level: Low

Why it happens

Additive prolongation of cardiac repolarization.

What to do

Monitor ECG and keep potassium and magnesium in the normal range during therapy. Avoid other QT-prolonging drugs where possible.

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 Ranolazine with Vorinostat?

MediHelp rates the interaction as moderate. Ranolazine and Vorinostat 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. Vorinostat has been associated with QT prolongation, and ranolazine also prolongs the QT interval. Combined use may increase the risk of ventricular arrhythmias.

How serious is the interaction between Ranolazine and Vorinostat?

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 ECG and keep potassium and magnesium in the normal range during therapy. Avoid other QT-prolonging drugs where possible.

What other medicines interact with Ranolazine?

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

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