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Drug interactions

Bedaquiline + Leuprolide

Severity: Moderate

Bedaquiline and Leuprolide: moderate 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, and androgen deprivation with leuprolide may add to the QT effect of bedaquiline. Combined use raises the risk of torsades de pointes, particularly with electrolyte disturbances or underlying heart disease.

What this interaction means in plain words

Bedaquiline and Leuprolide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Bedaquiline belongs to Anti Bacterial; Leuprolide belongs to Endocrine.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic QT prolongation through delayed cardiac repolarization.

What to do

Obtain a baseline ECG and repeat it during treatment, and correct potassium, magnesium and calcium before and during therapy. Stop or reassess therapy if the QTc becomes markedly prolonged.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Bedaquiline with Leuprolide?

MediHelp rates the interaction as moderate. Bedaquiline and Leuprolide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both drugs can prolong the QT interval, and androgen deprivation with leuprolide may add to the QT effect of bedaquiline. Combined use raises the risk of torsades de pointes, particularly with electrolyte disturbances or underlying heart disease.

How serious is the interaction between Bedaquiline and Leuprolide?

MediHelp rates it moderate, 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 it during treatment, and correct potassium, magnesium and calcium before and during therapy. Stop or reassess therapy if the QTc becomes markedly prolonged.

What other medicines interact with Leuprolide?

MediHelp also lists interactions of Leuprolide with, for example, Pimozide, Thioridazine, Amisulpride. The full list is on the Leuprolide page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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