Drug interactions
Bedaquiline + Ofloxacin
Severity: Major
Bedaquiline and Ofloxacin: 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 carries a QT prolongation warning, and ofloxacin adds to this effect. The combination is often used in drug-resistant tuberculosis regimens, where arrhythmia risk needs active management.
What this interaction means in plain words
Bedaquiline and Ofloxacin 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; Ofloxacin belongs to Anti Bacterial.
Why it happens
Additive QT prolongation through cardiac potassium channel effects.
What to do
Monitor ECG at baseline and periodically during therapy, and maintain normal potassium, magnesium and calcium. Stop or modify therapy if the 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 Ofloxacin
- Ofloxacin + Thioridazine Contraindicated
- Adagrasib + Ofloxacin Major
- Amiodarone + Ofloxacin Major
- Amisulpride + Ofloxacin Major
- Anagrelide + Ofloxacin Major
- Arsenic trioxide + Ofloxacin 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 Ofloxacin?
MediHelp rates the interaction as major. Bedaquiline and Ofloxacin 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 carries a QT prolongation warning, and ofloxacin adds to this effect. The combination is often used in drug-resistant tuberculosis regimens, where arrhythmia risk needs active management.
How serious is the interaction between Bedaquiline and Ofloxacin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG at baseline and periodically during therapy, and maintain normal potassium, magnesium and calcium. Stop or modify therapy if the QTc becomes markedly prolonged.
What other medicines interact with Ofloxacin?
MediHelp also lists interactions of Ofloxacin with, for example, Thioridazine, Adagrasib, Amiodarone. The full list is on the Ofloxacin page.
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