Drug interactions
Amisulpride + Lithium
Severity: Major
Amisulpride and Lithium: 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
Both drugs have been associated with QT prolongation, and amisulpride carries a dose-related risk of torsades de pointes. The combined risk is higher with electrolyte disturbance, bradycardia or renal impairment, which also raises lithium levels.
What this interaction means in plain words
Amisulpride and Lithium 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.
Amisulpride belongs to Central Nervous System; Lithium belongs to Central Nervous System.
Why it happens
Additive effects on cardiac repolarization leading to QT interval prolongation.
What to do
Avoid the combination when possible. If used, obtain a baseline and follow-up ECG, correct potassium and magnesium, and monitor lithium levels and renal function.
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 Lithium
- Lithium + Thioridazine Contraindicated
- Lithium + Vandetanib Contraindicated
- Aceclofenac + Lithium Major
- Acemetacin + Lithium Major
- Amlodipine-benazepril + Lithium Major
- Amlodipine-hydrochlorothiazide-valsartan + Lithium Major
Other interactions of Amisulpride
- Amiodarone + Amisulpride Contraindicated
- Amisulpride + Arsenic trioxide Contraindicated
- Amisulpride + Disopyramide Contraindicated
- Amisulpride + Dofetilide Contraindicated
- Amisulpride + Droperidol Contraindicated
- Amisulpride + Ibutilide Contraindicated
Frequently asked questions
Can I take Amisulpride with Lithium?
MediHelp rates the interaction as major. Amisulpride and Lithium 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. Both drugs have been associated with QT prolongation, and amisulpride carries a dose-related risk of torsades de pointes. The combined risk is higher with electrolyte disturbance, bradycardia or renal impairment, which also raises lithium levels.
How serious is the interaction between Amisulpride and Lithium?
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 when possible. If used, obtain a baseline and follow-up ECG, correct potassium and magnesium, and monitor lithium levels and renal function.
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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