Drug interactions
Paliperidone + Prochlorperazine
Severity: Major
Paliperidone and Prochlorperazine: 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
Combining two antipsychotics increases the risk of extrapyramidal symptoms, neuroleptic malignant syndrome, sedation and QT prolongation. The QT effect may lead to torsades de pointes, particularly with electrolyte disturbances or cardiac disease.
What this interaction means in plain words
Paliperidone and Prochlorperazine 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.
Paliperidone belongs to Central Nervous System; Prochlorperazine belongs to Central Nervous System.
Why it happens
Additive dopamine D2 blockade and additive prolongation of cardiac repolarization.
What to do
Avoid the combination where possible; if needed, use the lowest dose of prochlorperazine for the shortest time. Check ECG and electrolytes and monitor for movement disorders and sedation.
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 Prochlorperazine
- Dronedarone + Prochlorperazine Contraindicated
- Ibutilide + Prochlorperazine Contraindicated
- Nilotinib + Prochlorperazine Contraindicated
- Pimozide + Prochlorperazine Contraindicated
- Prochlorperazine + Thioridazine Contraindicated
- Amiodarone + Prochlorperazine Major
Other interactions of Paliperidone
- Ibutilide + Paliperidone Contraindicated
- Paliperidone + Pimozide Contraindicated
- Paliperidone + Vandetanib Contraindicated
- Adagrasib + Paliperidone Major
- Amiodarone + Paliperidone Major
- Amisulpride + Paliperidone Major
Frequently asked questions
Can I take Paliperidone with Prochlorperazine?
MediHelp rates the interaction as major. Paliperidone and Prochlorperazine 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. Combining two antipsychotics increases the risk of extrapyramidal symptoms, neuroleptic malignant syndrome, sedation and QT prolongation. The QT effect may lead to torsades de pointes, particularly with electrolyte disturbances or cardiac disease.
How serious is the interaction between Paliperidone and Prochlorperazine?
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 where possible; if needed, use the lowest dose of prochlorperazine for the shortest time. Check ECG and electrolytes and monitor for movement disorders and sedation.
What other medicines interact with Prochlorperazine?
MediHelp also lists interactions of Prochlorperazine with, for example, Dronedarone, Ibutilide, Nilotinib. The full list is on the Prochlorperazine page.
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