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Drug interactions

Buprenorphine long-acting + Buspirone

Severity: Moderate

Buprenorphine long-acting and Buspirone: 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

Buspirone causes mild sedation and dizziness, which may add to the CNS and respiratory depression of buprenorphine. The effect is smaller than with benzodiazepines but still relevant given the long duration of the depot injection.

What this interaction means in plain words

Buprenorphine long-acting and Buspirone 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 CNS depression between opioid agonism and buspirone's sedative effects.

What to do

Monitor for sedation, dizziness and respiratory depression, particularly when starting or adjusting buspirone. Counsel patients to avoid alcohol and other sedatives.

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 long-acting with Buspirone?

MediHelp rates the interaction as moderate. Buprenorphine long-acting and Buspirone 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. Buspirone causes mild sedation and dizziness, which may add to the CNS and respiratory depression of buprenorphine. The effect is smaller than with benzodiazepines but still relevant given the long duration of the depot injection.

How serious is the interaction between Buprenorphine long-acting and Buspirone?

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 sedation, dizziness and respiratory depression, particularly when starting or adjusting buspirone. Counsel patients to avoid alcohol and other sedatives.

What other medicines interact with Buspirone?

MediHelp also lists interactions of Buspirone with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Buspirone page.

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