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Drug interactions

Benperidol + Solifenacin

Severity: Moderate

Benperidol and Solifenacin: 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

Benperidol is a butyrophenone antipsychotic that can prolong the QT interval and has some anticholinergic effect. Used with solifenacin it may increase anticholinergic adverse effects and arrhythmic risk.

What this interaction means in plain words

Benperidol and Solifenacin 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 prolongation and anticholinergic effects.

What to do

Obtain an ECG and check electrolytes in patients with risk factors, and monitor for anticholinergic adverse effects and confusion.

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 Benperidol with Solifenacin?

MediHelp rates the interaction as moderate. Benperidol and Solifenacin 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. Benperidol is a butyrophenone antipsychotic that can prolong the QT interval and has some anticholinergic effect. Used with solifenacin it may increase anticholinergic adverse effects and arrhythmic risk.

How serious is the interaction between Benperidol and Solifenacin?

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 an ECG and check electrolytes in patients with risk factors, and monitor for anticholinergic adverse effects and confusion.

What other medicines interact with Solifenacin?

MediHelp also lists interactions of Solifenacin with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Solifenacin page.

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

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