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Drug interactions

Buprenorphine buccal + Dolasetron

Severity: Moderate

Buprenorphine buccal and Dolasetron: 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, especially at higher buccal doses, can prolong the QT interval, and dolasetron does the same. The combination may raise the risk of torsades de pointes.

What this interaction means in plain words

Buprenorphine buccal and Dolasetron 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.

Evidence level: Low

Why it happens

Additive QT prolongation.

What to do

Use another antiemetic if feasible. Otherwise obtain an ECG and correct electrolytes in patients with cardiac 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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Buprenorphine buccal with Dolasetron?

MediHelp rates the interaction as moderate. Buprenorphine buccal and Dolasetron 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, especially at higher buccal doses, can prolong the QT interval, and dolasetron does the same. The combination may raise the risk of torsades de pointes.

How serious is the interaction between Buprenorphine buccal and Dolasetron?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use another antiemetic if feasible. Otherwise obtain an ECG and correct electrolytes in patients with cardiac risk factors.

What other medicines interact with Dolasetron?

MediHelp also lists interactions of Dolasetron with, for example, Apomorphine, Dofetilide, Ibutilide. The full list is on the Dolasetron page.

Full monographs, dosing and an interaction checker in the MediHelp app

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