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Drug interactions

Metoclopramide + Propantheline

Severity: Moderate

Metoclopramide and Propantheline: 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

Propantheline is an anticholinergic that slows gastrointestinal motility and opposes the prokinetic effect of metoclopramide. Metoclopramide efficacy may be reduced.

What this interaction means in plain words

Metoclopramide and Propantheline 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: Moderate

Why it happens

Pharmacodynamic antagonism: anticholinergic inhibition of GI motility versus metoclopramide prokinetic action.

What to do

Avoid combining when a prokinetic effect is desired; otherwise monitor for reduced symptom control and adjust therapy.

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 Propantheline?

MediHelp rates the interaction as moderate. Metoclopramide and Propantheline 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. Propantheline is an anticholinergic that slows gastrointestinal motility and opposes the prokinetic effect of metoclopramide. Metoclopramide efficacy may be reduced.

How serious is the interaction between Metoclopramide and Propantheline?

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 when a prokinetic effect is desired; otherwise monitor for reduced symptom control and adjust therapy.

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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