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Drug interactions

Metoclopramide + Oxycodone

Severity: Moderate

Metoclopramide and Oxycodone: 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

Oxycodone reduces gastrointestinal motility, countering metoclopramide's prokinetic effect, and both drugs add to sedation. Metoclopramide may also speed absorption of oral opioids.

What this interaction means in plain words

Metoclopramide and Oxycodone 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.

Metoclopramide belongs to Gastrointestinal Tract; Oxycodone belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Opposing gut motility effects and additive CNS depression.

What to do

Monitor sedation and respiratory rate, particularly at initiation and dose changes. Reassess prokinetic benefit if constipation or gastroparesis symptoms persist.

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 Metoclopramide with Oxycodone?

MediHelp rates the interaction as moderate. Metoclopramide and Oxycodone 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. Oxycodone reduces gastrointestinal motility, countering metoclopramide's prokinetic effect, and both drugs add to sedation. Metoclopramide may also speed absorption of oral opioids.

How serious is the interaction between Metoclopramide and Oxycodone?

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 sedation and respiratory rate, particularly at initiation and dose changes. Reassess prokinetic benefit if constipation or gastroparesis symptoms persist.

What other medicines interact with Metoclopramide?

MediHelp also lists interactions of Metoclopramide with, for example, Amantadine, Amoxapine, Antipsychotics (e.g., haloperidol). The full list is on the Metoclopramide page.

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