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Drug interactions

Eluxadoline + Methadone

Severity: Moderate

Eluxadoline and Methadone: 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

Opioids such as methadone slow gut transit and cause constipation, and eluxadoline carries a risk of serious constipation-related complications including pancreatitis and obstruction. The combination raises this risk and eluxadoline is meant to be avoided with drugs that cause severe constipation.

What this interaction means in plain words

Eluxadoline and Methadone 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.

Eluxadoline belongs to Gastrointestinal Tract; Methadone belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive effects on opioid receptors in the gut reducing motility.

What to do

Avoid concomitant use where possible, and if started, stop eluxadoline when severe constipation develops. Monitor bowel function closely.

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 Eluxadoline with Methadone?

MediHelp rates the interaction as moderate. Eluxadoline and Methadone 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. Opioids such as methadone slow gut transit and cause constipation, and eluxadoline carries a risk of serious constipation-related complications including pancreatitis and obstruction. The combination raises this risk and eluxadoline is meant to be avoided with drugs that cause severe constipation.

How serious is the interaction between Eluxadoline and Methadone?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concomitant use where possible, and if started, stop eluxadoline when severe constipation develops. Monitor bowel function closely.

What other medicines interact with Methadone?

MediHelp also lists interactions of Methadone with, for example, Alvimopan, Calcium / magnesium / potassium / sodium oxybates, Droperidol. The full list is on the Methadone page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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