Drug interactions
Buprenorphine buccal + Paroxetine
Severity: Moderate
Buprenorphine buccal and Paroxetine: 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
Buprenorphine can prolong the QT interval, and paroxetine has little QT effect on its own. Concurrent serotonergic activity also carries a risk of serotonin syndrome. The combined clinical risk is generally modest.
What this interaction means in plain words
Buprenorphine buccal and Paroxetine 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
Possible additive QT effect and additive serotonergic activity.
What to do
Monitor for serotonin toxicity symptoms and consider an ECG in patients with QT risk factors. Avoid additional QT-prolonging drugs.
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 Paroxetine
- Isocarboxazid + Paroxetine Contraindicated
- Methylene blue + Paroxetine Contraindicated
- Paroxetine + Phenelzine Contraindicated
- Paroxetine + Pimozide Contraindicated
- Paroxetine + Procarbazine Contraindicated
- Paroxetine + Selegiline Contraindicated
Frequently asked questions
Can I take Buprenorphine buccal with Paroxetine?
MediHelp rates the interaction as moderate. Buprenorphine buccal and Paroxetine 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. Buprenorphine can prolong the QT interval, and paroxetine has little QT effect on its own. Concurrent serotonergic activity also carries a risk of serotonin syndrome. The combined clinical risk is generally modest.
How serious is the interaction between Buprenorphine buccal and Paroxetine?
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 serotonin toxicity symptoms and consider an ECG in patients with QT risk factors. Avoid additional QT-prolonging drugs.
What other medicines interact with Paroxetine?
MediHelp also lists interactions of Paroxetine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Paroxetine page.
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