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Drug interactions

Digoxin + Ofloxacin

Severity: Moderate

Digoxin 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

Ofloxacin has been reported to raise digoxin levels slightly, possibly by reducing gut bacterial inactivation or affecting P-glycoprotein transport. Elevated digoxin may cause nausea, visual changes, or arrhythmias, particularly in older patients or those with renal impairment.

What this interaction means in plain words

Digoxin 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.

Digoxin belongs to Cardiovascular; Ofloxacin belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Possible reduction of intestinal bacterial digoxin metabolism and altered P-glycoprotein-mediated elimination, increasing digoxin exposure.

What to do

Monitor for digoxin toxicity and check serum digoxin concentrations if symptoms occur or renal function is poor. Reduce the digoxin dose if levels are elevated.

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 Digoxin with Ofloxacin?

MediHelp rates the interaction as moderate. Digoxin 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. Ofloxacin has been reported to raise digoxin levels slightly, possibly by reducing gut bacterial inactivation or affecting P-glycoprotein transport. Elevated digoxin may cause nausea, visual changes, or arrhythmias, particularly in older patients or those with renal impairment.

How serious is the interaction between Digoxin 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: Monitor for digoxin toxicity and check serum digoxin concentrations if symptoms occur or renal function is poor. Reduce the digoxin dose if levels are elevated.

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

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