Drug interactions
Foscarnet + Paliperidone
Severity: Major
Foscarnet and Paliperidone: 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 can prolong the QT interval, and foscarnet adds QT effects plus electrolyte disturbances. The combination increases the risk of torsades de pointes.
What this interaction means in plain words
Foscarnet and Paliperidone 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.
Foscarnet belongs to Anti Virals; Paliperidone belongs to Central Nervous System.
Why it happens
Additive QT prolongation with electrolyte disturbance.
What to do
Monitor ECG and serum electrolytes and correct abnormalities. Consider alternative therapy if QTc becomes prolonged.
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 Foscarnet
- Cidofovir + Foscarnet Contraindicated
- Foscarnet + Pimozide Contraindicated
- Foscarnet + Thioridazine Contraindicated
- Foscarnet + Vandetanib Contraindicated
- Adagrasib + Foscarnet Major
- Adefovir + Foscarnet 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 Foscarnet with Paliperidone?
MediHelp rates the interaction as major. Foscarnet and Paliperidone 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 can prolong the QT interval, and foscarnet adds QT effects plus electrolyte disturbances. The combination increases the risk of torsades de pointes.
How serious is the interaction between Foscarnet and Paliperidone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and serum electrolytes and correct abnormalities. Consider alternative therapy if QTc becomes prolonged.
What other medicines interact with Foscarnet?
MediHelp also lists interactions of Foscarnet with, for example, Cidofovir, Pimozide, Thioridazine. The full list is on the Foscarnet page.
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