Drug interactions
Bedaquiline + Clozapine
Severity: Major
Bedaquiline and Clozapine: 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 can prolong the QT interval, so combined use may increase the risk of torsades de pointes. Risk rises with electrolyte disturbances, cardiac disease or other QT-prolonging drugs.
What this interaction means in plain words
Bedaquiline and Clozapine 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.
Bedaquiline belongs to Anti Bacterial; Clozapine belongs to Central Nervous System.
Why it happens
Additive QTc prolongation through cardiac repolarization effects.
What to do
Obtain a baseline ECG and repeat during treatment, and correct potassium, magnesium and calcium. Avoid the combination or stop therapy if QTc becomes markedly 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 Clozapine
- Clozapine + Deferiprone Contraindicated
- Clozapine + Irinotecan Contraindicated
- Clozapine + Pimozide Contraindicated
- Clozapine + Thioridazine Contraindicated
- Acalabrutinib + Clozapine Major
- Adagrasib + Clozapine Major
Other interactions of Bedaquiline
- Bedaquiline + Ziprasidone Contraindicated
- Alfuzosin + Bedaquiline Major
- Amiodarone + Bedaquiline Major
- Amisulpride + Bedaquiline Major
- Amitriptyline + Bedaquiline Major
- Amobarbital + Bedaquiline Major
Frequently asked questions
Can I take Bedaquiline with Clozapine?
MediHelp rates the interaction as major. Bedaquiline and Clozapine 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 can prolong the QT interval, so combined use may increase the risk of torsades de pointes. Risk rises with electrolyte disturbances, cardiac disease or other QT-prolonging drugs.
How serious is the interaction between Bedaquiline and Clozapine?
MediHelp rates it major, 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 repeat during treatment, and correct potassium, magnesium and calcium. Avoid the combination or stop therapy if QTc becomes markedly prolonged.
What other medicines interact with Clozapine?
MediHelp also lists interactions of Clozapine with, for example, Deferiprone, Irinotecan, Pimozide. The full list is on the Clozapine page.
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