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Drug interactions

Elagolix + Morphine

Severity: Minor

Elagolix and Morphine: minor 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

Elagolix can inhibit intestinal P-glycoprotein, and morphine is a P-gp substrate. Morphine exposure may rise modestly, increasing the potential for sedation and respiratory depression.

What this interaction means in plain words

Elagolix and Morphine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Elagolix belongs to Musculoskeletal; Morphine belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Inhibition of P-glycoprotein efflux, which may increase morphine absorption and CNS penetration.

What to do

Monitor for increased opioid effects such as sedation and slowed breathing, and reduce the morphine dose if these occur.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Elagolix with Morphine?

MediHelp rates the interaction as minor. Elagolix and Morphine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Elagolix can inhibit intestinal P-glycoprotein, and morphine is a P-gp substrate. Morphine exposure may rise modestly, increasing the potential for sedation and respiratory depression.

How serious is the interaction between Elagolix and Morphine?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for increased opioid effects such as sedation and slowed breathing, and reduce the morphine dose if these occur.

What other medicines interact with Morphine?

MediHelp also lists interactions of Morphine with, for example, Alvimopan, Isocarboxazid, Olanzapine / samidorphan. The full list is on the Morphine 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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