Drug interactions
Lithium + Paliperidone
Severity: Moderate
Lithium and Paliperidone: moderate 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 prolongs the QT interval modestly and lithium may add to this effect. Concomitant use also increases the risk of neurotoxicity and extrapyramidal symptoms in some patients.
What this interaction means in plain words
Lithium and Paliperidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Lithium belongs to Central Nervous System; Paliperidone belongs to Central Nervous System.
Why it happens
Additive effects on cardiac repolarization; possible pharmacodynamic CNS interaction.
What to do
Obtain a baseline ECG and electrolytes, and monitor for QT prolongation, especially with other risk factors. Watch for neurotoxicity and check lithium levels periodically.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Lithium
- Lithium + Thioridazine Contraindicated
- Lithium + Vandetanib Contraindicated
- Aceclofenac + Lithium Major
- Acemetacin + Lithium Major
- Amisulpride + Lithium Major
- Amlodipine-benazepril + Lithium 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 Lithium with Paliperidone?
MediHelp rates the interaction as moderate. Lithium and Paliperidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Paliperidone prolongs the QT interval modestly and lithium may add to this effect. Concomitant use also increases the risk of neurotoxicity and extrapyramidal symptoms in some patients.
How serious is the interaction between Lithium and Paliperidone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and electrolytes, and monitor for QT prolongation, especially with other risk factors. Watch for neurotoxicity and check lithium levels periodically.
What other medicines interact with Lithium?
MediHelp also lists interactions of Lithium with, for example, Thioridazine, Vandetanib, Aceclofenac. The full list is on the Lithium page.
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