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Drug interactions

Methadone + Motherwort

Severity: Moderate

Methadone and Motherwort: 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

Motherwort has traditional sedative properties and may add to the central nervous system depression produced by methadone. Evidence is limited, but excess drowsiness and slowed breathing are plausible.

What this interaction means in plain words

Methadone and Motherwort 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

Theoretical additive sedative effect; the herb's constituents are poorly characterized.

What to do

Advise patients to avoid motherwort or other sedating herbal products while taking methadone. If used, monitor for excessive drowsiness.

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 Methadone with Motherwort?

MediHelp rates the interaction as moderate. Methadone and Motherwort 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. Motherwort has traditional sedative properties and may add to the central nervous system depression produced by methadone. Evidence is limited, but excess drowsiness and slowed breathing are plausible.

How serious is the interaction between Methadone and Motherwort?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to avoid motherwort or other sedating herbal products while taking methadone. If used, monitor for excessive drowsiness.

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

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