Drug interactions
Buprenorphine buccal + Haloperidol
Severity: Major
Buprenorphine buccal and Haloperidol: major interaction.
Last updated Sources: UK SmPC
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
Both drugs can prolong the QT interval, and buprenorphine also adds CNS and respiratory depression to the sedative effect of haloperidol. The combination may increase arrhythmia risk and sedation.
What this interaction means in plain words
Buprenorphine buccal and Haloperidol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Additive QT prolongation and additive CNS depression.
What to do
Check a baseline ECG, correct electrolytes, and monitor QTc and sedation. Choose an alternative if QTc is markedly prolonged.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Haloperidol
- Dofetilide + Haloperidol Contraindicated
- Dronedarone + Haloperidol Contraindicated
- Haloperidol + Ibutilide Contraindicated
- Haloperidol + Levoketoconazole Contraindicated
- Haloperidol + Panobinostat Contraindicated
- Haloperidol + Pimozide Contraindicated
Frequently asked questions
Can I take Buprenorphine buccal with Haloperidol?
MediHelp rates the interaction as major. Buprenorphine buccal and Haloperidol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs can prolong the QT interval, and buprenorphine also adds CNS and respiratory depression to the sedative effect of haloperidol. The combination may increase arrhythmia risk and sedation.
How serious is the interaction between Buprenorphine buccal and Haloperidol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check a baseline ECG, correct electrolytes, and monitor QTc and sedation. Choose an alternative if QTc is markedly prolonged.
What other medicines interact with Haloperidol?
MediHelp also lists interactions of Haloperidol with, for example, Dofetilide, Dronedarone, Ibutilide. The full list is on the Haloperidol page.
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