Drug interactions
Loperamide + Metoclopramide intranasal
Severity: Moderate
Loperamide and Metoclopramide intranasal: 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
Loperamide slows gastrointestinal transit and opposes the prokinetic action of metoclopramide, so the therapeutic effect of metoclopramide may be reduced. Absorption of the intranasal dose is largely nasal, so any kinetic effect is likely small.
What this interaction means in plain words
Loperamide and Metoclopramide intranasal 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.
Why it happens
Pharmacodynamic antagonism: loperamide reduces GI motility while metoclopramide enhances it.
What to do
Avoid combining where possible; if both are needed, monitor gastroparesis symptom control and reassess the need for loperamide.
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?
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Other interactions of Loperamide
Frequently asked questions
Can I take Loperamide with Metoclopramide intranasal?
MediHelp rates the interaction as moderate. Loperamide and Metoclopramide intranasal 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. Loperamide slows gastrointestinal transit and opposes the prokinetic action of metoclopramide, so the therapeutic effect of metoclopramide may be reduced. Absorption of the intranasal dose is largely nasal, so any kinetic effect is likely small.
How serious is the interaction between Loperamide and Metoclopramide intranasal?
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 where possible; if both are needed, monitor gastroparesis symptom control and reassess the need for loperamide.
What other medicines interact with Loperamide?
MediHelp also lists interactions of Loperamide with, for example, Amiodarone, Amisulpride, Anagrelide. The full list is on the Loperamide page.
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