Drug interactions
Ropinirole + Trifluoperazine
Severity: Major
Ropinirole and Trifluoperazine: 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
Trifluoperazine is a high-potency phenothiazine with strong D2 blockade that opposes ropinirole. This can worsen parkinsonism and diminish the dopamine agonist's effect.
What this interaction means in plain words
Ropinirole and Trifluoperazine 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
Pharmacodynamic antagonism at dopamine D2 receptors.
What to do
Avoid the combination and use quetiapine or clozapine if an antipsychotic is required. Monitor motor symptoms closely if both must continue.
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 Ropinirole
- Amisulpride + Ropinirole Contraindicated
- Chlorpromazine + Ropinirole Major
- Droperidol + Ropinirole Major
- Fluphenazine + Ropinirole Major
- Fluvoxamine + Ropinirole Major
- Haloperidol + Ropinirole Major
Frequently asked questions
Can I take Ropinirole with Trifluoperazine?
MediHelp rates the interaction as major. Ropinirole and Trifluoperazine 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. Trifluoperazine is a high-potency phenothiazine with strong D2 blockade that opposes ropinirole. This can worsen parkinsonism and diminish the dopamine agonist's effect.
How serious is the interaction between Ropinirole and Trifluoperazine?
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 quetiapine or clozapine if an antipsychotic is required. Monitor motor symptoms closely if both must continue.
What other medicines interact with Ropinirole?
MediHelp also lists interactions of Ropinirole with, for example, Amisulpride, Chlorpromazine, Droperidol. The full list is on the Ropinirole page.
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