Drug interactions
Buprenorphine transdermal + Donepezil
Severity: Moderate
Buprenorphine transdermal and Donepezil: 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 has labeling describing dose-related QT prolongation, and donepezil can also cause torsades. The combination may raise arrhythmia risk, particularly in older patients with other risk factors.
What this interaction means in plain words
Buprenorphine transdermal and Donepezil 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 prolongation of cardiac repolarization.
What to do
Obtain a baseline ECG in patients with cardiac risk factors and correct electrolytes. Use the lowest effective buprenorphine dose and monitor for palpitations or syncope.
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 Donepezil
- Donepezil + Dronedarone Contraindicated
- Donepezil + Pimozide Contraindicated
- Donepezil + Thioridazine Contraindicated
- Donepezil + Vandetanib Contraindicated
- Amiodarone + Donepezil Major
- Amisulpride + Donepezil Major
Frequently asked questions
Can I take Buprenorphine transdermal with Donepezil?
MediHelp rates the interaction as moderate. Buprenorphine transdermal and Donepezil 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 has labeling describing dose-related QT prolongation, and donepezil can also cause torsades. The combination may raise arrhythmia risk, particularly in older patients with other risk factors.
How serious is the interaction between Buprenorphine transdermal and Donepezil?
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 in patients with cardiac risk factors and correct electrolytes. Use the lowest effective buprenorphine dose and monitor for palpitations or syncope.
What other medicines interact with Donepezil?
MediHelp also lists interactions of Donepezil with, for example, Dronedarone, Pimozide, Thioridazine. The full list is on the Donepezil page.
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