Drug interactions
Amisulpride + Thiothixene
Severity: Major
Amisulpride and Thiothixene: 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 are antipsychotics with dopamine antagonism, so combined use adds risks of QT prolongation, extrapyramidal symptoms and neuroleptic malignant syndrome. Amisulpride is particularly associated with QT prolongation.
What this interaction means in plain words
Amisulpride and Thiothixene 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.
Why it happens
Additive D2 receptor blockade and QT prolongation.
What to do
Avoid combining; use a single antipsychotic. If combined, obtain ECG, check electrolytes and monitor for neuroleptic malignant syndrome.
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 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 Thiothixene?
MediHelp rates the interaction as major. Amisulpride and Thiothixene 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 are antipsychotics with dopamine antagonism, so combined use adds risks of QT prolongation, extrapyramidal symptoms and neuroleptic malignant syndrome. Amisulpride is particularly associated with QT prolongation.
How serious is the interaction between Amisulpride and Thiothixene?
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 combining; use a single antipsychotic. If combined, obtain ECG, check electrolytes and monitor for neuroleptic malignant syndrome.
What other medicines interact with Amisulpride?
MediHelp also lists interactions of Amisulpride with, for example, Amiodarone, Arsenic trioxide, Disopyramide. The full list is on the Amisulpride page.
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