Drug interactions
Paliperidone + Quinine
Severity: Major
Paliperidone and Quinine: 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
Paliperidone and quinine both prolong the QT interval, so combined use may raise the risk of torsades de pointes. Risk is greater with bradycardia, hypokalemia, hypomagnesemia or structural heart disease.
What this interaction means in plain words
Paliperidone and Quinine 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; Quinine belongs to Anti Parasitic.
Why it happens
Additive QT prolongation via cardiac repolarization blockade.
What to do
Avoid if alternatives exist; otherwise obtain baseline and follow-up ECGs and correct electrolytes.
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 Quinine
- Arsenic trioxide + Quinine Contraindicated
- Dofetilide + Quinine Contraindicated
- Dronedarone + Quinine Contraindicated
- Ibutilide + Quinine Contraindicated
- Mefloquine + Quinine Contraindicated
- Nilotinib + Quinine Contraindicated
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 Quinine?
MediHelp rates the interaction as major. Paliperidone and Quinine 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 and quinine both prolong the QT interval, so combined use may raise the risk of torsades de pointes. Risk is greater with bradycardia, hypokalemia, hypomagnesemia or structural heart disease.
How serious is the interaction between Paliperidone and Quinine?
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 if alternatives exist; otherwise obtain baseline and follow-up ECGs and correct electrolytes.
What other medicines interact with Quinine?
MediHelp also lists interactions of Quinine with, for example, Arsenic trioxide, Dofetilide, Dronedarone. The full list is on the Quinine page.
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