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Drug interactions

Difenoxin + Metoclopramide

Severity: Moderate

Difenoxin and Metoclopramide: 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

Difenoxin is an opioid antidiarrheal that slows gut motility and can cause drowsiness. It directly opposes the prokinetic action of metoclopramide and may add to sedation.

What this interaction means in plain words

Difenoxin and Metoclopramide 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.

Difenoxin belongs to Gastrointestinal Tract; Metoclopramide belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Opioid-mediated inhibition of gastrointestinal motility antagonizes metoclopramide, with additive CNS depression.

What to do

Avoid combining them for motility purposes, and if both are needed, monitor for sedation and loss of efficacy.

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 Difenoxin with Metoclopramide?

MediHelp rates the interaction as moderate. Difenoxin and Metoclopramide 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. Difenoxin is an opioid antidiarrheal that slows gut motility and can cause drowsiness. It directly opposes the prokinetic action of metoclopramide and may add to sedation.

How serious is the interaction between Difenoxin and Metoclopramide?

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 combining them for motility purposes, and if both are needed, monitor for sedation and loss of efficacy.

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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