Drug interactions
Apomorphine + Metoclopramide
Severity: Major
Apomorphine and Metoclopramide: 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
Metoclopramide blocks the dopamine receptors that apomorphine stimulates, reducing apomorphine's effect in Parkinson disease. Parkinsonian symptoms may worsen.
What this interaction means in plain words
Apomorphine and Metoclopramide 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.
Apomorphine belongs to Central Nervous System; Metoclopramide belongs to Gastrointestinal Tract.
Why it happens
Pharmacodynamic antagonism at central D2 receptors.
What to do
Avoid metoclopramide. Use domperidone where available, or ondansetron, for nausea with apomorphine.
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 Metoclopramide
Other interactions of Apomorphine
- Alosetron + Apomorphine Contraindicated
- Apomorphine + Cisapride Contraindicated
- Apomorphine + Dolasetron Contraindicated
- Apomorphine + Granisetron Contraindicated
- Apomorphine + Netupitant-palonosetron Contraindicated
- Apomorphine + Ondansetron Contraindicated
Frequently asked questions
Can I take Apomorphine with Metoclopramide?
MediHelp rates the interaction as major. Apomorphine and Metoclopramide 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. Metoclopramide blocks the dopamine receptors that apomorphine stimulates, reducing apomorphine's effect in Parkinson disease. Parkinsonian symptoms may worsen.
How serious is the interaction between Apomorphine and Metoclopramide?
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 metoclopramide. Use domperidone where available, or ondansetron, for nausea with apomorphine.
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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