Drug interactions
Metoclopramide intranasal + Paliperidone
Severity: Major
Metoclopramide intranasal and Paliperidone: major interaction.
Last updated Sources: UK SmPC
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
Both drugs block dopamine D2 receptors, so combining them increases the risk of extrapyramidal symptoms, tardive dyskinesia and neuroleptic malignant syndrome. The effect is additive and can be severe or persistent.
What this interaction means in plain words
Metoclopramide intranasal and Paliperidone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Additive central dopamine D2 receptor antagonism.
What to do
Avoid the combination and use a non-dopamine-blocking antiemetic or prokinetic. If it cannot be avoided, monitor for movement disorders, rigidity and fever.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Paliperidone
- Ibutilide + Paliperidone Contraindicated
- Paliperidone + Pimozide Contraindicated
- Paliperidone + Vandetanib Contraindicated
- Adagrasib + Paliperidone Major
- Amiodarone + Paliperidone Major
- Amisulpride + Paliperidone Major
Frequently asked questions
Can I take Metoclopramide intranasal with Paliperidone?
MediHelp rates the interaction as major. Metoclopramide intranasal and Paliperidone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs block dopamine D2 receptors, so combining them increases the risk of extrapyramidal symptoms, tardive dyskinesia and neuroleptic malignant syndrome. The effect is additive and can be severe or persistent.
How serious is the interaction between Metoclopramide intranasal and Paliperidone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and use a non-dopamine-blocking antiemetic or prokinetic. If it cannot be avoided, monitor for movement disorders, rigidity and fever.
What other medicines interact with Paliperidone?
MediHelp also lists interactions of Paliperidone with, for example, Ibutilide, Pimozide, Vandetanib. The full list is on the Paliperidone page.
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