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Drug interactions

Buprenorphine long-acting + Dextroamphetamine

Severity: Moderate

Buprenorphine long-acting and Dextroamphetamine: 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

Amphetamine increases serotonin release and buprenorphine has been associated with serotonin syndrome. Together they may increase the risk of serotonin toxicity, which can be severe. Long-acting injection cannot be quickly withdrawn if toxicity develops.

What this interaction means in plain words

Buprenorphine long-acting and Dextroamphetamine 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 serotonergic activity.

What to do

Monitor for agitation, tremor, hyperreflexia, sweating and fever after starting or changing doses. Stop the stimulant and provide supportive care if serotonin syndrome is suspected.

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 Dextroamphetamine?

MediHelp rates the interaction as moderate. Buprenorphine long-acting and Dextroamphetamine 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. Amphetamine increases serotonin release and buprenorphine has been associated with serotonin syndrome. Together they may increase the risk of serotonin toxicity, which can be severe. Long-acting injection cannot be quickly withdrawn if toxicity develops.

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

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 agitation, tremor, hyperreflexia, sweating and fever after starting or changing doses. Stop the stimulant and provide supportive care if serotonin syndrome is suspected.

What other medicines interact with Dextroamphetamine?

MediHelp also lists interactions of Dextroamphetamine with, for example, Isocarboxazid, Linezolid, Methylene blue. The full list is on the Dextroamphetamine page.

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

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