Drug interactions
Asenapine transdermal + Solifenacin
Severity: Moderate
Asenapine transdermal 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
Asenapine can prolong the QT interval, and solifenacin has a dose-related QT effect. Together they may increase the risk of ventricular arrhythmia in susceptible patients.
What this interaction means in plain words
Asenapine transdermal 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.
Why it happens
Additive QT prolongation.
What to do
Obtain a baseline ECG and monitor it during therapy, keep potassium and magnesium normal, and consider a different bladder agent in patients with other QT risk factors.
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 Asenapine transdermal with Solifenacin?
MediHelp rates the interaction as moderate. Asenapine transdermal 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. Asenapine can prolong the QT interval, and solifenacin has a dose-related QT effect. Together they may increase the risk of ventricular arrhythmia in susceptible patients.
How serious is the interaction between Asenapine transdermal 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 a baseline ECG and monitor it during therapy, keep potassium and magnesium normal, and consider a different bladder agent in patients with other QT risk factors.
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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