Drug interactions
Solifenacin + Zotepine
Severity: Moderate
Solifenacin and Zotepine: 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
Zotepine has anticholinergic activity and can prolong the QT interval, so combining it with solifenacin adds to anticholinergic burden and arrhythmia risk. Zotepine also carries a seizure risk and sedation, which may be worsened by confusion.
What this interaction means in plain words
Solifenacin and Zotepine 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.
Why it happens
Additive antimuscarinic effects and additive QT prolongation.
What to do
Monitor for anticholinergic effects and cognitive changes, and check ECG in patients with QT risk factors. Consider a non-anticholinergic alternative for bladder symptoms.
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
Frequently asked questions
Can I take Solifenacin with Zotepine?
MediHelp rates the interaction as moderate. Solifenacin and Zotepine 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. Zotepine has anticholinergic activity and can prolong the QT interval, so combining it with solifenacin adds to anticholinergic burden and arrhythmia risk. Zotepine also carries a seizure risk and sedation, which may be worsened by confusion.
How serious is the interaction between Solifenacin and Zotepine?
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 anticholinergic effects and cognitive changes, and check ECG in patients with QT risk factors. Consider a non-anticholinergic alternative for bladder symptoms.
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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