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Drug interactions

Butalbital + Solifenacin

Severity: Minor

Butalbital and Solifenacin: minor 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

Butalbital is a barbiturate that induces CYP3A4 and may reduce solifenacin exposure. Because butalbital is often used intermittently, the clinical effect is likely small.

What this interaction means in plain words

Butalbital and Solifenacin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Induction of CYP3A4 increases solifenacin clearance.

What to do

Monitor bladder symptom control if butalbital is taken regularly and adjust the solifenacin dose if efficacy declines.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Butalbital with Solifenacin?

MediHelp rates the interaction as minor. Butalbital and Solifenacin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Butalbital is a barbiturate that induces CYP3A4 and may reduce solifenacin exposure. Because butalbital is often used intermittently, the clinical effect is likely small.

How serious is the interaction between Butalbital and Solifenacin?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor bladder symptom control if butalbital is taken regularly and adjust the solifenacin dose if efficacy declines.

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.

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