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Drug interactions

Risperidone + Romidepsin

Severity: Moderate

Risperidone and Romidepsin: 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

Romidepsin has been associated with ECG changes including QT prolongation, and risperidone can also prolong QTc. Combined use may increase the risk of serious arrhythmia.

What this interaction means in plain words

Risperidone and Romidepsin 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.

Evidence level: Low

Why it happens

Additive QT interval prolongation.

What to do

Obtain a baseline ECG and monitor QTc during treatment. Keep potassium and magnesium within normal range.

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 Risperidone with Romidepsin?

MediHelp rates the interaction as moderate. Risperidone and Romidepsin 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. Romidepsin has been associated with ECG changes including QT prolongation, and risperidone can also prolong QTc. Combined use may increase the risk of serious arrhythmia.

How serious is the interaction between Risperidone and Romidepsin?

MediHelp rates it moderate, 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 QTc during treatment. Keep potassium and magnesium within normal range.

What other medicines interact with Risperidone?

MediHelp also lists interactions of Risperidone with, for example, Ibutilide, Vandetanib, Adagrasib. The full list is on the Risperidone page.

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

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