Drug interactions
Lisuride + Perphenazine
Severity: Major
Lisuride and Perphenazine: 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
Lisuride stimulates dopamine receptors whereas perphenazine blocks them, so each reduces the other's effect. Parkinson symptoms may worsen and psychosis control may be compromised.
What this interaction means in plain words
Lisuride and Perphenazine 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. Use quetiapine or clozapine if an antipsychotic is needed in a patient on dopamine agonists.
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 Perphenazine
- Ibutilide + Perphenazine Contraindicated
- Perphenazine + Pimozide Contraindicated
- Perphenazine + Thioridazine Contraindicated
- Adagrasib + Perphenazine Major
- Alfentanil + Perphenazine Major
- Amiodarone + Perphenazine Major
Frequently asked questions
Can I take Lisuride with Perphenazine?
MediHelp rates the interaction as major. Lisuride and Perphenazine 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. Lisuride stimulates dopamine receptors whereas perphenazine blocks them, so each reduces the other's effect. Parkinson symptoms may worsen and psychosis control may be compromised.
How serious is the interaction between Lisuride and Perphenazine?
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. Use quetiapine or clozapine if an antipsychotic is needed in a patient on dopamine agonists.
What other medicines interact with Perphenazine?
MediHelp also lists interactions of Perphenazine with, for example, Ibutilide, Pimozide, Thioridazine. The full list is on the Perphenazine page.
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