Drug interactions
Buprenorphine transdermal + Solifenacin
Severity: Moderate
Buprenorphine 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
Transdermal buprenorphine carries a labeled QT warning, and solifenacin adds a dose-related QT effect. The risk is greatest in patients with long QT, electrolyte abnormalities, or other QT-prolonging drugs.
What this interaction means in plain words
Buprenorphine 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, with additive constipating and urinary retention effects.
What to do
Monitor ECG in at-risk patients and keep electrolytes normal. Consider an alternative to solifenacin if the patient has 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 Buprenorphine transdermal with Solifenacin?
MediHelp rates the interaction as moderate. Buprenorphine 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. Transdermal buprenorphine carries a labeled QT warning, and solifenacin adds a dose-related QT effect. The risk is greatest in patients with long QT, electrolyte abnormalities, or other QT-prolonging drugs.
How serious is the interaction between Buprenorphine 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: Monitor ECG in at-risk patients and keep electrolytes normal. Consider an alternative to solifenacin if the patient has 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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