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Drug interactions

Lefamulin + Ofloxacin

Severity: Moderate

Lefamulin and Ofloxacin: 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

Lefamulin can prolong the QT interval, and ofloxacin may add to it. Combined use may increase the risk of ventricular arrhythmias.

What this interaction means in plain words

Lefamulin and Ofloxacin 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.

Lefamulin belongs to Anti Bacterial; Ofloxacin belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Additive pharmacodynamic QT prolongation.

What to do

Avoid combining two antibiotics with QT effects when an alternative exists. If both are needed, monitor ECG and electrolytes.

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 Lefamulin with Ofloxacin?

MediHelp rates the interaction as moderate. Lefamulin and Ofloxacin 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. Lefamulin can prolong the QT interval, and ofloxacin may add to it. Combined use may increase the risk of ventricular arrhythmias.

How serious is the interaction between Lefamulin and Ofloxacin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining two antibiotics with QT effects when an alternative exists. If both are needed, monitor ECG and electrolytes.

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.

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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