Drug interactions
Solifenacin + Stiripentol
Severity: Moderate
Solifenacin and Stiripentol: 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
Stiripentol has both inhibiting and inducing effects on CYP3A4, so solifenacin exposure may rise or fall unpredictably. The net result is variable and may affect efficacy or tolerability.
What this interaction means in plain words
Solifenacin and Stiripentol 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.
Solifenacin belongs to Genitourinary; Stiripentol belongs to Central Nervous System.
Why it happens
Mixed inhibition and induction of CYP3A4 by stiripentol alters solifenacin metabolism.
What to do
Monitor for both loss of effect and anticholinergic adverse effects after starting or changing stiripentol. Adjust the solifenacin dose according to response.
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?
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Other interactions of Solifenacin
Other interactions of Stiripentol
Frequently asked questions
Can I take Solifenacin with Stiripentol?
MediHelp rates the interaction as moderate. Solifenacin and Stiripentol 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. Stiripentol has both inhibiting and inducing effects on CYP3A4, so solifenacin exposure may rise or fall unpredictably. The net result is variable and may affect efficacy or tolerability.
How serious is the interaction between Solifenacin and Stiripentol?
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 for both loss of effect and anticholinergic adverse effects after starting or changing stiripentol. Adjust the solifenacin dose according to response.
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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