Carbidopa Levodopa and Metoclopramide: Drug Interaction Guide
Quick answer: This is a major interaction — avoid combining Carbidopa Levodopa and Metoclopramide unless specifically directed by your doctor.
How Carbidopa Levodopa interacts with Metoclopramide
Metoclopramide is a central dopamine D2 receptor antagonist that opposes levodopa's dopaminergic action and can precipitate or worsen parkinsonian symptoms.
What you should do
Avoid metoclopramide in Parkinson's disease; use domperidone (which does not cross the blood-brain barrier significantly) or ondansetron for nausea instead.
Key facts
Severity
Major — avoid combination
Mechanism
Metoclopramide is a central dopamine D2 receptor antagonist that opposes levodopa's dopaminergic action and can precipit...
Action
Avoid metoclopramide in Parkinson's disease; use domperidone (which does not cross the blood-brain barrier significantly...
Frequently asked questions
Can I take Carbidopa Levodopa and Metoclopramide together?
No — this combination should generally be avoided. Avoid metoclopramide in Parkinson's disease; use domperidone (which does not cross the blood-brain barrier significantly) or ondansetron for nausea instead.
What is the severity of this interaction?
The interaction between Carbidopa Levodopa and Metoclopramide is classified as Major — avoid combination. Metoclopramide is a central dopamine D2 receptor antagonist that opposes levodopa's dopaminergic action and can precipitate or worsen parkinsonian symptoms.
What should I do if I'm prescribed both?
Avoid metoclopramide in Parkinson's disease; use domperidone (which does not cross the blood-brain barrier significantly) or ondansetron for nausea instead. Always consult your prescribing clinician — do not stop or change medications without medical guidance.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.