Drug interactions
Metoclopramide intranasal + Risperidone
Severity: Major
Metoclopramide intranasal and Risperidone: major 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
Both drugs block dopamine D2 receptors. Together they increase the risk of extrapyramidal symptoms, tardive dyskinesia and neuroleptic malignant syndrome.
What this interaction means in plain words
Metoclopramide intranasal and Risperidone 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 dopamine D2 receptor antagonism.
What to do
Avoid the combination and choose a non-dopamine-blocking antiemetic such as ondansetron if QT risk allows. If unavoidable, monitor for movement disorders and rigidity.
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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Other interactions of Risperidone
- Ibutilide + Risperidone Contraindicated
- Risperidone + Vandetanib Contraindicated
- Adagrasib + Risperidone Major
- Amiodarone + Risperidone Major
- Amisulpride + Risperidone Major
- Amoxapine + Risperidone Major
Frequently asked questions
Can I take Metoclopramide intranasal with Risperidone?
MediHelp rates the interaction as major. Metoclopramide intranasal and Risperidone 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. Together they increase the risk of extrapyramidal symptoms, tardive dyskinesia and neuroleptic malignant syndrome.
How serious is the interaction between Metoclopramide intranasal and Risperidone?
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 choose a non-dopamine-blocking antiemetic such as ondansetron if QT risk allows. If unavoidable, monitor for movement disorders and rigidity.
What other medicines interact with Risperidone?
MediHelp also lists interactions of Risperidone with, for example, Ibutilide, Vandetanib, Adagrasib. The full list is on the Risperidone page.
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