Drug interactions
Bedaquiline + Loperamide
Severity: Major
Bedaquiline and Loperamide: 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
Bedaquiline prolongs the QT interval and loperamide may add to this at high doses. The risk of torsades de pointes is increased.
What this interaction means in plain words
Bedaquiline and Loperamide 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; Loperamide belongs to Gastrointestinal Tract.
Why it happens
Additive QT prolongation via hERG channel inhibition.
What to do
Avoid excess loperamide dosing and monitor ECG regularly during bedaquiline therapy. Correct electrolytes.
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 Loperamide
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 Loperamide?
MediHelp rates the interaction as major. Bedaquiline and Loperamide 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 prolongs the QT interval and loperamide may add to this at high doses. The risk of torsades de pointes is increased.
How serious is the interaction between Bedaquiline and Loperamide?
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 excess loperamide dosing and monitor ECG regularly during bedaquiline therapy. Correct electrolytes.
What other medicines interact with Loperamide?
MediHelp also lists interactions of Loperamide with, for example, Amiodarone, Amisulpride, Anagrelide. The full list is on the Loperamide page.
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