Drug interactions
Amisulpride + Clarithromycin
Severity: Major
Amisulpride and Clarithromycin: 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 prolong the QT interval and together raise the risk of torsades de pointes. Risk is greater with bradycardia, electrolyte disturbance or existing heart disease.
What this interaction means in plain words
Amisulpride and Clarithromycin 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; Clarithromycin belongs to Anti Bacterial.
Why it happens
Additive prolongation of cardiac repolarization.
What to do
Avoid if possible. If required, obtain a baseline ECG, correct potassium and magnesium, and monitor the QTc during therapy.
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 Clarithromycin
- Astemizole + Clarithromycin Contraindicated
- Avanafil + Clarithromycin Contraindicated
- Cisapride + Clarithromycin Contraindicated
- Clarithromycin + Colchicine Contraindicated
- Clarithromycin + Conivaptan Contraindicated
- Clarithromycin + Dihydroergotamine Contraindicated
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 Clarithromycin?
MediHelp rates the interaction as major. Amisulpride and Clarithromycin 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 prolong the QT interval and together raise the risk of torsades de pointes. Risk is greater with bradycardia, electrolyte disturbance or existing heart disease.
How serious is the interaction between Amisulpride and Clarithromycin?
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 possible. If required, obtain a baseline ECG, correct potassium and magnesium, and monitor the QTc during therapy.
What other medicines interact with Clarithromycin?
MediHelp also lists interactions of Clarithromycin with, for example, Astemizole, Avanafil, Cisapride. The full list is on the Clarithromycin page.
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